Illinois Ornithological Records Committee

Black-legged Kittiwake
- Rissa tridactyla

northern Illinois - excluding Lake County and Cook County
October 2-8, 2005, La Salle County (Cindy McKee, John McKee)
(MJIB 15:2:71)
October 19, 1988, Channahon, Will County (Joe Milosevich)
(IORC 1988.090; JBM) (IBB 5:2:47) (IBB 6:1:11)
November 27, 1981, Lee County (Mike Madsen)
(IORC Doc. Form)
November 29 - December 1, 2002, Starved Rock SP, La Salle County (Cindy McKee, John McKee)
(MJIB 12:2:74)
December 14, 2004 - January 1, 2005, Mississippi River at L&D 14, Rock Island County (Steve Freed)
(MJIB 14:3:113)
     December 14, 2004, Mississippi River at L&D 14, Scott County, IA
     December 26, 2004, Mississippi River at L&D 14, Scott County, IA
     December 29, 2004, Mississippi River at L&D 14, Rock Island County, IL (Steve Freed)
     December 30, 2004, Mississippi River at L&D 14, Scott County, IA (Chris Edwards)
     January 1, 2005, Mississippi River at L&D 14, Scott County, IA
December 18-30, 1967, Mississippi River at L&D 14&15, Rock Island County (Mr. and Mrs. Jacob Frink)
(IAB 145:15-16)
     December 18, 1967, Mississippi River at L&D 15, Rock Island County (Mr. and Mrs. Jacob Frink) 
     December 19, 1967, Mississippi River at L&D 15, Rock Island County (Pete Peterson, William Lonnecker - photos) 
     December 20-30, 1967, Mississippi River at L&D 14, Rock Island County (Elton Fawks)
December 29, 2007, Rockford Airport, Winnebago County (Dan Williams, Barbara Williams)
(MJIB 17:3:112)
January 4, 1997, La Salle Lake, La Salle County (Cindy McKee) (IORC 1997.066; CM)
(MJIB 6:3:115) (MJIB 8:2:59)
January 11, 1975, Mississippi River at East Moline, Rock Island County (Elton Fawks)
(IAB 173:21)
February 19, 1977, Mississippi River at L&D 13, Whiteside County (Betty Shaw)
(IAB 181:40) (AB 31:3:338) (Bohlen 1989)
May 4, 1997, Randall Road and Route 72, Kane County (Al Stokie)
(IORC 1997.019; AFS) (MJIB 6:4:141) (MJIB 6:4:150) (MJIB 8:2:59)

central Illinois
August 25, 1984, Lake Springfield, Sangamon County (David Bohlen)
(IBB 1:2:20) (Bohlen 1989)
October 24, 1981, Clinton Lake, DeWitt County (Bob Chapel)
(SR 31:12) (Bohlen 1989)
October 31, 1976, Lake Charleston, Coles County (injured) (fide L. Barrie Hunt)
(IAB 180:44) (AB 31:2:184)
November 4, 1995, Chautauqua NWR, Mason County (Bob Chapel)
(MJIB 5:2:74)
November 8, 1991, Peoria, Peoria County (Louise Augustine)
(MJIB 1:2:33)
November 9, 1987, Lake Springfield, Sangamon County (David Bohlen)
(IBB 4:2:43)
November 11, 1985, Lake Springfield, Sangamon County (David Bohlen)
(IBB 2:2:52)
November 11, 2004, Tazewell County (Kevin Richmond)
(MJIB 14:2:72)
November 13-19, 1988, Clinton Lake, DeWitt County (Myrna Deaton)
(IORC 1988.091; MFD, RDP, RTC) (IBB 5:2:47) (IBB 6:1:11)
November 19, 1981, Lake Springfield, Sangamon County (David Bohlen)
(SR 31:12)
November 21 - December 8, 1966, Lake Decatur, Macon County (David Bohlen)
(Bohlen 1978)
November 22, 1980, Lake Springfield, Sangamon County (Randy Korotev)
(SR 27:9)
     November 22, 1980, Lake Springfield, Sangamon County (Randy Korotev) 
     December 6, 1980, Lake Springfield, Sangamon County (2) (David Bohlen) 
     December 7-13, 1980, Lake Springfield, Sangamon County (David Bohlen)
November 22, 1997, Clinton Lake, DeWitt County (Bob Chapel)
(MJIB 7:2:73)
November 22-24, 1995, Pekin, Tazewell County (Kevin Richmond)
(MJIB 5:2:74)
November 22 - December 20, 1990, Lake Springfield, Sangamon County (David Bohlen)
(IBB 7:2:51) (IBB 7:3:74)
     November 22, 1990, Lake Springfield, Sangamon County (David Bohlen)
     November 28, 1990, Lake Springfield, Sangamon County (David Bohlen)
     November 29, 1990, Lake Springfield, Sangamon County (David Bohlen)
     December 5, 1990, Lake Springfield, Sangamon County (David Bohlen)
     December 10, 1990, Lake Springfield, Sangamon County (David Bohlen)
     December 12, 1990, Lake Springfield, Sangamon County (David Bohlen)
     December 20, 1990, Lake Springfield, Sangamon County (David Bohlen)
November 23, 1974, Mississippi River at Hamilton, Hancock County (Richard Sandburg, David Bohlen)
(IAB 172:29) (AB 29:1:66) (Bohlen 1978)
November 23 - December 1, 1996, Clinton Lake, DeWitt County (Myrna Deaton)
(MJIB 6:2:74)
November 25, 1898, Meredosia Lake, Morgan County (specimen - FMNH 94574)
(Bohlen 1978) (Bohlen 1989)
November 25-26, 2006, Lake Shelbyville, Moultrie County (Travis Mahan)
(MJIB 16:2:71)
     November 25, 2006, Lake Shelbyville, Moultrie County (Travis Mahan)
     November 26, 2006, Lake Shelbyville, Moultrie County (Myrna Deaton, Karen Forcum, Ted Forcum)
November 27, 1991, Lake Springfield, Sangamon County (David Bohlen)
(MJIB 1:2:33)
December 2, 2001, Lake Shelbyville, Shelby/Moultrie County (Bob Chapel)
(MJIB 11:2:74) (MJIB 11:3:115)
December 3, 1974, Lake Decatur, Macon County (2) (Richard Sandburg)
(IAB 172:29) (AB 29:1:66)
December 3-7, 1975, Lake Decatur, Macon County (Richard Sandburg)
(IAB 176:33) (AB 30:1:80)
December 6-10, 1990, Clinton Lake, DeWitt County (Richard Palmer, Bob Chapel)
(IBB 7:2:51) (IBB 7:3:74)
December 17, 1995, Clinton Lake, DeWitt County (Bob Chapel) (MJIB 5:3:93-106)
(MJIB 5:3:116)
December 27, 1992 - February 4, 1993, Lake Springfield, Sangamon County (David Bohlen)
(MJIB 2:3:113)
December 28, 1969, Lake Springfield, Sangamon County
(IAB 154:31-32)
December 31, 1973, Lake Springfield, Sangamon County (David Bohlen)
December 1923, Lake Decatur, Macon County (several) (S. Eddy)
(Wilson Bulletin 39:223-228)
(Bohlen 1989)
January 2-13, 1967, Illinois River at Chillicothe/Rome, Peoria County (L. H. Princen)
(IAB 143:18) (AFN 21:253) (Bohlen 1978)
     January 2, 1967, Illinois River at Chillicothe/Rome, Peoria County (L. H. Princen) 
     January 13, 1967, Illinois River at Chillicothe/Rome, Peoria County (2) (L. H. Princen)
January 4, 1986, Lake Decatur, Macon County (Tom McLean, Richard Palmer)
(IORC 1986.085; RDP) (IBB 2:3:76) (IBB 4:3:60) (AB 40:287) (Bohlen 1989)
January 8, 1998, Chautauqua NWR, Mason County (Richard Bjorklund, Scott Cohrs)
(MJIB 7:3:115)
January 16, 1999, Lake Springfield, Sangamon County (David Bohlen)
(MJIB 8:3:116)
February 16, 1973, Lake Springfield, Sangamon County (David Bohlen)
(AB 27:3:624)
February 20, 2000, Clinton Lake, DeWitt County (Bob Chapel)
(MJIB 9:3:115)
March 8, 1997, Clinton Lake, DeWitt County (Bob Chapel)
(IORC 1997.018; RTC) (MJIB 6:4:150) (MJIB 8:2:59)
March 12, 2007, Chautauqua NWR, Mason County (Rob Randall)
(IBET)
April 1-8, 1971, Lake Springfield, Sangamon County (David Bohlen)
(IAB 159:11-13) (AB 25:4:752) (Bohlen 1978) (Bohlen 1989)
     April 2, 1971, Lake Springfield, Sangamon County (Dr. John R. Paul - photos)

southern Illinois
October 20 - November 16, 1991, Carlyle Lake, Clinton County (Bob Danley)
(NN 63:10:102) (MJIB 1:2:33)
     October 20, 1991, Carlyle Lake, Clinton County (Bob Danley, Todd Fink, Dan Kassebaum)
     November 16, 1991, Carlyle Lake, Clinton County (Dan Kassebaum, Bill Rudden)
October 29, 1982, East Alton, Madison County (Ron Goetz)
(SR 35:11) (AB 37:187) (Bohlen 1989)
November 6-28, 2004, Carlyle Lake, Clinton County (Travis Mahan)
(IORC 2004.066; TAM, DMK) (MJIB 14:2:61) (MJIB 14:2:72)
     November 6, 2004, Carlyle Lake, Clinton County (Travis Mahan) 
     November 21, 2004, Carlyle Lake, Clinton County (Joe Eades)
     November 22, 2004, Carlyle Lake, Clinton County (Charlene Malone)
     November 23, 2004, Carlyle Lake, Clinton County (Josh Uffman)
     November 28, 2004, Carlyle Lake, Clinton County (Dan Kassebaum - photos, Charlene Malone, Jim Malone - photos)
November 9, 1992, Carlyle Lake, Clinton County (Jack Van Benthuysen)
(NN 65:1:2)
November 10, 1995, Horseshoe Lake, Madison County (Keith McMullen)
(MJIB 5:2:74)
November 11-12, 2006, Carlyle Lake, Clinton County (Dan Kassebaum)
(MJIB 16:2:71)
     November 11, 2006, Carlyle Lake, Clinton County (Dan Kassebaum)
     November 12, 2006, Carlyle Lake, Clinton County (Connie Alwood, David Becher, Dennis Jacobsen, Dan Kassebaum, Travis Mahan, Charlene Malone, Jim Malone)
November 15, 1985, Mississippi River at Alton, Madison County (Bill Rudden)
(IBB 2:2:52)
November 17-19, 1990, Crab Orchard NWR, Williamson County (Bob Danley, Doug Robinson)
(IBB 7:2:51) (Robinson 1996)
November 18-20, 1993, Carlyle Lake, Clinton County (Todd Fink)
 (NN 66:1) (MJIB 3:2:72)
     November 18, 1993, Carlyle Lake, Clinton County (Todd Fink - photos)
     November 19, 1993, Carlyle Lake, Clinton County (Paul Bauer, Kevin Richmond, Albert Seppi, Jack Van Benthuysen)
     November 20, 1993, Carlyle Lake, Clinton County (WGNSS)
     Nature Notes 66:1 cites an additional first winter kittiwake within the date range of this record. 
November 18 - December 1, 1988, Mississippi River at Alton, Madison County (Bill Rudden)
(IBB 5:2:47)
November 21, 1981, Mark Twain NWR, Calhoun County (Randy Korotev)
(SR 31:12)
November 23, 1990, East Fork Lake, Richland County (Leroy Harrison)
(IBB 7:2:51)
December 2, 1974, Mississippi River at Alton, Madison County (Sally Vasse)
(IAB 172:29) (AB 29:1:66)
December 3-4, 1986, Horseshoe Lake, Madison County (Ron Goetz)
(IORC 1986.204; RG) (IBB 3:3:68) (IBB 5:1:5)
December 4, 1971, Mississippi River at Alton, Madison County (Jim Ruschill)
(IAB 162:16)
December 6-8, 1986, Carlyle Sewage Pond, Clinton County (Leroy Harrison)
(IORC 1986.211; LH) (NN 59:3:24) (IBB 3:2:40) (IBB 3:3:68) (IBB 5:1:5)
December 9, 1983 - January 14, 1984, Carlyle Lake, Clinton County (Bill Rudden)
(NN 56:2:15) (SR 40:10) (IAB 209:36) (AB 38:323) (Bohlen 1989)
     December 9, 1983, Carlyle Lake, Clinton County (Bill Rudden)
     December 10, 1983, Carlyle Lake, Clinton County (2) (WGNSS)
     December 12, 1983, Carlyle Lake, Clinton County (3) (Roger Hayes)
     December 13, 1983, Carlyle Lake, Clinton County (3) (Bill Rudden, Phoebe Snetsinger)
     December 14, 1983, Carlyle Lake, Clinton County (3) (Skip Russell)
     December 15, 1983, Carlyle Lake, Clinton County (3) (Gary Bowman - photos)
     December 18, 1983, Carlyle Lake, Clinton County (Gary Bowman - photos)
     January 8, 1984, Carlyle Lake, Clinton County (Skip Russell)
     January 14, 1984, Carlyle Lake, Clinton County (Skip Russell)
December 17, 2002, Carlyle Lake, Clinton County (Leroy Harrison, Craig Litteken, Keith McMullen, Bob Shelby)
(MJIB 12:3:93-103) (MJIB 12:3:115)
January 7-8, 1977, Mississippi River at the Chain-of-Rocks, Madison County (2) (Dave Easterla, Mark Robbins)
(NN 49:3:17) (AB 31:3:338)
January 10-12, 1980, Mississippi River at the Chain-of-Rocks, Madison County (Joe Walsh)
(NN 57:3:19) (AB 34:278) (Bohlen 1989)
     January 10, 1980, Mississippi River at the Chain-of-Rocks, Madison County (Joe Walsh)
     January 12, 1980, Mississippi River at the Chain-of-Rocks, Madison County (Richard Anderson)
January 11 - February 14, 1976, Mississippi River at Alton, Madison County (Bertha Massie)
(NN 48:3:21) (AB 30:3:726)
     January 11, 1976, Mississippi River at Alton, Madison County (Bertha Massie)
     January 15, 1976, Mississippi River at Alton, Madison County (Tim Barksdale, Joe Eades)
January 22-30, 2000, Carlyle Lake, Clinton County (Dan Kassebaum)
 (NN 72:3:9) (MJIB 9:3:115)
     January 22, 2000, Carlyle Lake, Clinton County (Dan Kassebaum)
     January 23, 2000, Carlyle Lake, Clinton County (Dan Kassebaum)
     January 29, 2000, Carlyle Lake, Clinton County (Frank Bennett, Dan Kassebaum, Keith McMullen)
     January 30, 2000, Carlyle Lake, Clinton County (Albert Seppi - photos)
January 29, 1967, Mississippi River at Alton, Madison County (Richard Anderson)
(AFN 21:3:425) 
     (Anderson and Bauer 1968) (Bohlen 1978) (WGNSS 1995)
February 2 - April 6, 1996, Mississippi River at Alton, Madison County (Dan Kassebaum)
(MJIB 5:3:116) (MJIB 5:4:148)
February 8 - March 10, 1968, Mississippi River at Alton, Madison County (Kathryn Arhos, Sally Vasse)
(IAB 146:29) (IAB 154:15) (AFN 22:3:444)
     (Anderson and Bauer 1968)
February 8, 1975, Mississippi River at Alton, Madison County (David Bohlen, Richard Sandburg)
(IAB 173:21) (AB 29:3:698)
February 17-20, 2007, Baldwin Lake, Randolph/St. Clair County (Pat Lueders)
(MJIB 16:3:114)
     February 17, 2007, Baldwin Lake, Randolph County (Pat Lueders, WGNSS)
     February 18, 2007, Baldwin Lake, Randolph County (Dan Kassebaum, Keith McMullen)
     February 19, 2007, Baldwin Lake, St. Clair County (Dan Kassebaum)
     February 20, 2007, Baldwin Lake, Randolph County (Mike Kutska, Craig Taylor)
March 17, 1989, Rend Lake, Franklin County (Bob Danley)
(Robinson 1996)
March 28 - April 9, 1972, Mississippi River at Alton, Madison County (David Bohlen)
(IAB 162:18) (IAB 163:17) (IAB 164:39) 
     March 28, 1972, Mississippi River at Alton, Madison County (David Bohlen, Joe Walsh, Pat Ward)
 (AB 26:3:612) (AB 26:4:767)
     April 9, 1972, Mississippi River at Alton, Madison County (Richard Anderson)
April 5, 1987, Rend Lake, Franklin County (Richard Palmer)
(IORC 1987.060; RDP) (IBB 3:4:93) (IBB 5:1:5) (Bohlen 1989) (Robinson 1996)
April 15, 1989, Mississippi River at Alton, Madison County (Bill Rowe)
(IBB 5:4:87)


Ivory Gull
- Pagophila eburnea

northern Illinois
December 25, 1991 - January 2, 1992, Chicago, Cook County (Kanae Hirabayashi, Al Stokie, Eric Walters, Jeff Sanders)
(MJIB 1:3:92-96)
     December 25, 1991, Montrose Harbor, Cook County (Kanae Hirabayashi, Al Stokie, Eric Walters, Jeff Sanders) (MJIB 1:3:112-114) (AB 46:331)
     December 26, 1991, Burnham Harbor, Cook County (fide Eric Walters) (IORC 1991.002; KH, AFS, JG, SH, SDB, RTC, DO, RDH, JBM) (MJIB 7:2:57)
     December 28, 1991, Burnham Harbor, Cook County (Rich Biss)
     December 30, 1991, Burnham Harbor, Cook County (Bob Hughes)
     January 2, 1992, Burnham Harbor, Cook County (Joe Milosevich)
January 1, 1949, Waukegan Harbor, Lake County (Al Campbell, Karl Bartel, Amy Baldwin)
(AFN 3:3:171-172)
     (Smith and Parmalee 1955) (Ford 1956) (IAB 144:13) (Smith 1958, 1972) (Bohlen 1978) (Mlodinow 1984) (Bohlen 1989)
January 3, 1967, Chicago, Cook County (Bedford Brown)
(IAB 141:12) (IAB 144:13) (AFN 21:3:425) (AFN 22:5:613)

central Illinois
December 20, 1966, Chillicothe, Peoria County (Jeff Sanders)
(AFN 21:3:425) (AFN 22:5:613)
January 1, 1991, Lake Springfield, Sangamon County (Clark Olson, John and Barbara Hayes)
(IORC 1991.001; HDB) (MJIB 7:2:57)
     January 1, 1991, Lake Springfield, Sangamon County (David Bohlen, Dennis Oehmke, Tedd Teeter) (IBB 7:3:71) (IBB 7:3:74)

Other records:
November 1989, Rock Cut SP, Winnebago County (MJIB 1:3:95-96)
January 1991, Goose Lake Prairie SP, Grundy County (MJIB 1:3:95-96)

Sabine's Gull
- Xema sabini

northern Illinois - excluding Lake County and Cook County
September 19, 2006, L&D 14, Rock Island County (Steve Freed)
(MJIB 16:2:71)
September 20, 2007, Heidecke Lake, Grundy County (Scott Cohrs)
(MJIB 17:2:70)
September 23, 2006, Heidecke Lake, Grundy County (Scott Cohrs)
(IBET)
September 24, 1993, Heidecke Lake, Grundy County (Joe Milosevich)
(MJIB 3:2:72)
September 30 - October 2, 2003, Rock Island County (Steve Freed)
(MJIB 13:2:72)
October 1-2, 1992, L&D 14, Rock Island County (Kelly McKay)
(MJIB 2:2:74)
October 12-26, 1991, Moline, Rock Island County (Pete Peterson)
(MJIB 1:2:22) (MJIB 1:2:32-33)
     October 12, 1991, Rock Island County (initial report)
     October 14, 1991, Rock Island County (2) (Pete Peterson)
     October 17, 1991, Rock Island County (2) (Pete Peterson)
     October 26, 1991, Rock Island County (Pete Peterson)

central Illinois
August 3, 1989, Lake Decatur, Macon County (Myrna Deaton)
(IBB 6:2:45)
September 1-12, 1988, Rice Lake CA, Fulton County (Kevin Richmond, Mike Baum)
(IORC 1988.103; MJB) (IBB 5:2:47) (IBB 6:1:11)
September 5-19, 2004, Lake Decatur, Macon County (Myrna Deaton, Travis Mahan, Al Stokie)
(MJIB 14:2:72)
September 6-7, 1995, Rice Lake CA, Fulton County (Kevin Richmond)
(MJIB 5:2:74)
September 8, 1995, Lake Decatur, Macon County (Myrna Deaton)
(MJIB 5:2:74)
September 11-12, 1975, Lake Decatur, Macon County (Richard Sandburg)
(IAB 176:33) (AB 30:1:80) (Bohlen 1978)
September 12, 1999, Lake Shelbyville, Shelby County (Bob Chapel)
(MJIB 9:2:74)
September 12-27, 1993, Lake Decatur, Macon County (Richard Palmer, Myrna Deaton)
(MJIB 3:2:72)
     September 12, 1993, Lake Decatur, Macon County (Richard Palmer, Myrna Deaton)
     September 27, 1993, Lake Decatur, Macon County (Myrna Deaton)
September 14-15, 2004, Lake Springfield, Sangamon County (David Bohlen, Kevin Richmond)
(MJIB 14:2:72)
September 16, 2004, Chautauqua NWR, Mason County (Kevin Richmond)
(MJIB 14:2:72)
September 16, 2007, Chautauqua NWR, Mason County (Kevin Richmond)
(MJIB 17:2:70)
September 16, 2007, Lake Shelbyville, Moultrie County (Travis Mahan)
(MJIB 17:2:70)
September 16-17, 1974, Lake Decatur, Macon County (Richard Sandburg)
(IAB 172:29) (AB 29:1:66) (Bohlen 1978)
September 17, 1994, Lake Springfield, Sangamon County (David Bohlen)
(MJIB 4:2:74)
September 18, 1995, Lake Springfield, Sangamon County (David Bohlen)
(MJIB 5:2:74)
September 18-21, 1988, Lake Springfield, Sangamon County (David Bohlen)
(IORC 1988.092; MFD, RDP) (IBB 6:1:11)
     September 18, 1988, Lake Springfield, Sangamon County (2) (David Bohlen) (IBB 5:2:47) (Bohlen 1989)
     September 21, 1988, Lake Springfield, Sangamon County (6) (Richard Palmer, Myrna Deaton)
September 18-21, 1979, Lake Springfield, Sangamon County (David Bohlen)
(SR 23:7)
September 20-26, 2003, Lake Springfield, Sangamon County (2) (David Bohlen)
(MJIB 13:2:72)
September 21, 1996, Lake Shelbyville, Moultrie/Shelby County (Bob Chapel)
(MJIB 6:2:74)
September 23, 1976, Lake Springfield, Sangamon County (David Bohlen)
(IAB 180:44) (AB 31:2:184)
September 23-25, 1974, Lake Springfield, Sangamon County (David Bohlen)
(IAB 172:29) (AB 29:1:66)
September 24, 1995, Lake Shelbyville, Moultrie/Shelby County (Bob Chapel)
(MJIB 5:2:74)
September 24, 1999, Clinton Lake, DeWitt County (Adam Reyburn)
(MJIB 9:2:74)
September 24-25, 1993, Lake Shelbyville, Moultrie/Shelby County (Richard Palmer)
(MJIB 3:2:72)
September 24 - October 4, 2005, Lake Springfield, Sangamon County (2) (David Bohlen)
(Bohlen, in manuscript)
September 25, 1974, Lake Springfield, Sangamon County (specimen - ISM 605923) (David Bohlen)
(Bohlen 1978) (Bohlen 1989)
September 25, 1980, Urbana, Champaign County (Bob Chapel)
(SR 27:9) (AB 35:189) (Bohlen 1989)
September 28, 1991, Lake Decatur, Macon County (Myrna Deaton)
(MJIB 1:2:33)
September 27 - October 1, 1992, Lake Springfield, Sangamon County (David Bohlen, Dennis Oehmke)
(MJIB 2:2:74)
September 30, 1984, Chautauqua NWR, Mason County (Tom Pucelik, Rob Randall)
(IBB 1:2:20) (Bohlen 1989)
September 1900, Mississippi River at Warsaw, Hancock County (3 specimens) (Charles Worthen)
(Auk 29:388-389) (Bohlen 1989)
     September 15, 1900, Mississippi River at Warsaw, Hancock County (specimen) (Charles Worthen)
October 3-5, 1991, Chautauqua NWR, Mason County (Louise Augustine, Bob Chapel)
(MJIB 1:2:33)
October 4, 1987, Big Lake, Fulton County (Louise Augustine, Kevin Richmond)
(IORC 1987.121; KR, LA) (IBB 4:2:43) (IBB 5:1:5) (Bohlen 1989)
October 6-13, 1976, Chautauqua NWR, Mason County (Richard Sandburg, Pam Gibson, Richard Palmer)
(Bohlen 1978)
October 8, 1985, Lake Springfield, Sangamon County (David Bohlen)
(IORC 1985.139; HDB) (IBB 2:2:52) (IBB 4:3:60) (Bohlen 1989)
October 9, 1988, Clinton Lake, DeWitt Count (Myrna Deaton)
(IBB 5:2:47)
October 10, 1976, Chautauqua NWR, Mason County (Richard Palmer)
(IAB 180:44) (AB 31:2:184)
October 10, 1989, Lake Springfield, Sangamon County (David Bohlen)
(IBB 6:2:45)
October 11, 2003, Crane Lake, Mason County (Travis Mahan)
(MJIB 13:2:72)
October 14-15, 2004, Chautauqua NWR, Mason County (Richard Bjorklund, Sigurd, Bob Fisher, Karen Fisher)
(MJIB 14:2:72)
October 28, 2007, Chautauqua NWR, Mason County (3) (Rhetta Jack)
(MJIB 17:2:70)
November 19, 2004, Tazewell  County (Kevin Richmond)
(MJIB 14:2:72)

southern Illinois
August 13, 1990, Olney, Richland County (Leroy Harrison)
(IBB 7:2:51)
September 8 - October 4, 2009, Carlyle Lake, Clinton County (Dan Kassebaum)

     September 8, 2009, Carlyle Lake, Clinton County (juvenile) (Dan Kassebaum, Mark Seiffert)
     September 9, 2009, Carlyle Lake, Clinton County (juvenile) (Dan Kassebaum)
     September 12, 2009, Carlyle Lake, Clinton County (juvenile) (Keith McMullen)
     September 13, 2009, Carlyle Lake, Clinton County (juvenile) (Dan Kassebaum, Charlene Malone, Jim Malone, Mark Seiffert)
     September 14, 2009, Carlyle Lake, Clinton County (juvenile) (Keith McMullen)
     September 18, 2009, Carlyle Lake, Clinton County (adult) (Larry Balch, Dan Kassebaum, Dan Williams)
     September 19, 2009, Carlyle Lake, Clinton County (StL Audubon Fieldtrip)
     September 23, 2009, Carlyle Lake, Clinton County (Connie Alwood, Chris Kirmaier)
     September 25, 2009, Carlyle Lake, Clinton County (2 juveniles) (Dan Kassebaum, Dan Wiley)
     October 1, 2009, Carlyle Lake, Clinton County (juvenile) (Dan Kassebaum)
     October 3, 2009, Carlyle Lake, Clinton County (2 juveniles) (Dan Kassebaum, Keith McMullen)
     October 4, 2009, Carlyle Lake, Clinton County (3 juveniles) (Dean Di Tommaso, Leroy Harrison, Bruce Heimer, Dan Kassebaum, Mark Seiffert)
September 8 - October 21, 2007, Carlyle Lake, Clinton County (Travis Mahan)
(MJIB 17:2:70)
     September 8, 2007, Carlyle Lake, Clinton County (2) (Joe Eades, Dan Kassebaum, Travis Mahan, Keith McMullen, Mark Seiffert, m.ob.)      
     September 9, 2007, Carlyle Lake, Clinton County (Dan Kassebaum, Kevin Richmond)      
     September 10, 2007, Carlyle Lake, Clinton County (2) (Dan Kassebaum, Bob Shelby, m.ob.) 
     September 11, 2007, Carlyle Lake, Clinton County (Charlene Malone)
     September 22, 2007, Carlyle Lake, Clinton County (2) (IOS Fieldtrip, StL Audubon Fieldtrip)
     September 30, 2007, Carlyle Lake, Clinton County (2) (Dan Kassebaum)
     October 3, 2007, Carlyle Lake, Clinton County (3) (Keith McMullen)
     October 6, 2007, Carlyle Lake, Clinton County (3) (IOS Fieldtrip)
     October 8, 2007, Carlyle Lake, Clinton County (Dan Kassebaum, Mark Seiffert)
     October 13, 2007, Carlyle Lake, Clinton County (Dan Kassebaum)
     October 14, 2007, Carlyle Lake, Clinton County (2) (Dan Kassebaum, Mark Seiffert, Josh Uffman)
     October 17, 2007, Carlyle Lake, Clinton County (Connie Alwood)
     October 18, 2007, Carlyle Lake, Clinton County (Joe Eades)
     October 19, 2007, Carlyle Lake, Clinton County (Keith McMullen)
     October 21, 2007, Carlyle Lake, Clinton County (3) (Dan Kassebaum, Mark Seiffert)
September 9-20, 2008, Carlyle Lake, Clinton County (Charlene Malone)
(MJIB 18:3:68) (NAB 63:1:84)
     September 9, 2008, Carlyle Lake, Clinton County (Charlene Malone)
     September 10, 2008, Carlyle Lake, Clinton County (2) (Dan Kassebaum, Mark Seifert)
     September 13, 2008, Carlyle Lake, Clinton County (2) (Dan Kassebaum, Charlene Malone, Jim Malone, Mark Seifert)
     September 14, 2008, Carlyle Lake, Clinton County (2) (Dan Kassebaum, Bill Rowe, Mark Seifert, Eric Walters)
     September 15, 2008, Carlyle Lake, Clinton County (2) (Keith McMullen)
     September 16, 2008, Carlyle Lake, Clinton County (3) (Joel Greenberg, Andy Sigler, Tim Wallace)
     September 19, 2008, Carlyle Lake, Clinton County (Bob Hughes, Mark Seiffert)
     September 20, 2008, West Access Marina, Clinton County (IOS Fieldtrip)
September 10-14, 2005, Carlyle Lake, Clinton County (Dan Kassebaum)
(MJIB 15:2:71)
     September 10, 2005, Carlyle Lake, Clinton County (Dan Kassebaum)
     September 11, 2005, Carlyle Lake, Clinton County (Dan Kassebaum, Mike Madsen, Keith McMullen, Andy Sigler, Al Stokie)
     September 14, 2005, Carlyle Lake, Clinton County (Dan Kassebaum)
September 10-23, 1995, Carlyle Lake, Clinton County (Dan Kassebaum)
(NN 67:9) (MJIB 5:2:74) (WGNSS 1998)
     September 10, 1995, Carlyle Lake, Clinton County (3) (Dan Kassebaum, Kent Lannert, Mark Seiffert, Mike Seiffert)
     September 17, 1995, Carlyle Lake, Clinton County (7) (Dan Kassebaum, Albert Seppi) 
     September 23, 1995, Carlyle Lake, Clinton County (Keith McMullen)
September 12, 1965, Mississippi River at Alton, Madison County (Richard Anderson)
(AFN 20:1:54) (Anderson and Bauer 1968) (Bohlen 1978)
September 13 - October 14, 1997, Carlyle Lake, Clinton County (Dan Kassebaum)
(NN 69:9:15) (NN 69:10:4) (MJIB 7:2:73)
     September 13, 1997, Carlyle Lake, Clinton County (2) (Dan Kassebaum) 
     September 14, 1997, Carlyle Lake, Clinton County (2) (Dan Kassebaum)
     September 21, 1997, Carlyle Lake, Clinton County (Randy Korotev, Tom Parmeter, Bill Rowe) 
     October 1, 1997, Carlyle Lake, Clinton County (Keith McMullen)
     October 4, 1997, Carlyle Lake, Clinton County (WGNSS) 
     October 5, 1997, Carlyle Lake, Clinton County (5) (Dan Kassebaum)
     October 14, 1997, Carlyle Lake, Clinton County (Dan Kassebaum)
September 14, 2001, Carlyle Lake, Clinton County (Leroy Harrison)
(MJIB 11:2:74)
September 15, 2005, Horseshoe Lake, Madison County (Charlene Malone, Jim Malone)
(MJIB 15:2:71)
September 15 - October 29, 2006, Carlyle Lake, Clinton County (Roger Hayes)
(MJIB 16:2:71)
     September 15, 2006, Carlyle Lake, Clinton County (Roger Hayes)
     September 16, 2006, Carlyle Lake, Clinton County (Roger Hayes, Dan Kassebaum, Bob Shelby, Deb Wesselmann)
     September 17, 2006, Carlyle Lake, Clinton County (Dan Kassebaum, Bill Rowe)
     September 21, 2006, Carlyle Lake, Clinton County (Keith McMullen)
     September 23, 2006, Carlyle Lake, Clinton County (IOS Field Trip)
     September 24, 2006, Carlyle Lake, Clinton County (Dan Kassebaum)
     September 28, 2006, Carlyle Lake, Clinton County (Jim Malone)
     September 30, 2006, Carlyle Lake, Clinton County (Dan Kassebaum)
     October 9, 2006, Carlyle Lake, Clinton County (2) (Dan Kassebaum)
     October 14, 2006, Carlyle Lake, Clinton County (2) (Dan Kassebaum)
     October 15, 2006, Carlyle Lake, Clinton County (Dan Kassebaum)
     October 28, 2006, Carlyle Lake, Clinton County (Leroy Harrison, Dan Kassebaum, Bill Rudden, Bob Shelby)
     October 29, 2006, Carlyle Lake, Clinton County (Dan Kassebaum)
September 16, 2000, Carlyle Lake, Clinton County (Kent Lannert)
(NN 72:9:5)
September 16-24, 2004, Carlyle Lake, Clinton County (Charlene Malone)
(MJIB 14:2:72)
     September 16, 2004, Carlyle Lake, Clinton County (3) (Charlene Malone) 
     September 17, 2004, Carlyle Lake, Clinton County (3) (Joe Eades, Roger Hayes, Keith McMullen) 
     September 18, 2004, Carlyle Lake, Clinton County (3) (Dan Kassebaum, Travis Mahan, Michael Retter, Kevin Richmond) 
     September 19, 2004, Carlyle Lake, Clinton County (2) (Joe Eades, Dan Kassebaum, Kevin Richmond, Bill Rudden) 
     September 20, 2004, Carlyle Lake, Clinton County (2) (Keith McMullen)
     September 21, 2004, Carlyle Lake, Clinton County (2) (Doug Stotz)
     September 23, 2004, Carlyle Lake, Clinton County (2) (Anne Downing)
September 17, 1995, Mark Twain NWR, Calhoun County (Bill Rowe)
(MJIB 5:2:74)
September 18 - October 2, 1996, Carlyle Lake, Clinton County (Dan Kassebaum)
(IORC 1996.090; DK) (MJIB 6:2:74) (MJIB 7:2:57)
     September 18, 1996, Carlyle Lake, Clinton County (Dan Kassebaum)
     September 21, 1996, Carlyle Lake, Clinton County (3) (Myrna Deaton, Dan Kassebaum, Keith McMullen)
     September 22, 1996, Carlyle Lake, Clinton County (4) (David Becher, Dan Kassebaum, Bob Kleiger)
     September 28, 1996, Carlyle Lake, Clinton County (4) (Keith McMullen)
     September 29, 1996, Carlyle Lake, Clinton County (4) (Dan Kassebaum)
     October 2, 1996, Carlyle Lake, Clinton County (2) (Dan Kassebaum, Jack Van Benthuysen)
September 19, 1987, Horseshoe Lake, Madison County (David Becher, Ron Goetz)
(IORC 1987.119; DR, RG) (IBB 4:2:43) (IBB 5:1:5) (Bohlen 1989)
September 19-20, 1998, Carlyle Lake, Clinton County (Dan Kassebaum, Keith McMullen)
(NN 70:9:10) (MJIB 8:2:73)
     September 19, 1998, Carlyle Lake, Clinton County (5) (Dan Kassebaum, Keith McMullen)
     September 20, 1998, Carlyle Lake, Clinton County (5) (Myrna Deaton, Dan Kassebaum)
September 21 - October 1, 2003, Carlyle Lake, Clinton County (Dan Kassebaum)
(MJIB 13:2:72)
     September 21, 2003, Carlyle Lake, Clinton County (Dan Kassebaum)
     September 22, 2003, Carlyle Lake, Clinton County (Keith McMullen)
     September 27, 2003, Carlyle Lake, Clinton County (2) (Joe Eades, StL Audubon Fieldtrip)
     October 1, 2003, Carlyle Lake, Clinton County (Dan Kassebaum)
September 22 - October 8, 2000, Carlyle Lake, Clinton County (Dan Kassebaum)
(NN 72:9:5) (MJIB 10:2:73)
     September 22, 2000, Carlyle Lake, Clinton County (Dan Kassebaum)
     September 23, 2000, Carlyle Lake, Clinton County (5) (IOS Fieldtrip)  
     September 30, 2000, Carlyle Lake, Clinton County (3) (Dan Kassebaum) 
     October 1, 2000, Carlyle Lake, Clinton County (2) (Frank Bennett, Dan Kassebaum, Keith McMullen)
     October 8, 2000, Carlyle Lake, Clinton County (Dan Kassebaum)
September 23-28, 1986, Carlyle Lake, Clinton County (Leroy Harrison)
(IORC 1986.177; CLH, RG, TEF, JBM) (IBB 3:2:40) (IBB 5:1:5) (AB 41:96)
     September 23, 1986, Carlyle Lake, Clinton County (7) (Ron Goetz, Leroy Harrison, Bill Rudden) (Bohlen 1989) (WGNSS 1995)
     September 25, 1986, Carlyle Lake, Clinton County (WGNSS)
     September 28, 1986, Carlyle Lake, Clinton County (WGNSS)
September 24, 1988, Carlyle Lake, Clinton County (3) (David Becher, Vivian Liddell)
(IORC 1988.093; DZB) (IBB 5:2:47) (IBB 6:1:11)
September 24, 1992, Crab Orchard NWR, Williamson County (Bob Danley)
(Robinson 1996)
September 24, 2005, Carlyle Lake, Clinton County (IOS Fieldtrip)
(MJIB 15:2:70-71)
September 25 - October 3, 1993, Carlyle Lake, Clinton County (George Barker, Terry Barker)
(NN 65:9) (NN 65:10) (MJIB 3:2:72)
    September 25, 1993, Carlyle Lake, Clinton County (3) (George Barker, Terry Barker) 
    September 27, 1993, Carlyle Lake, Clinton County (Jack Van Benthuysen) 
    October 2, 1993, Carlyle Lake, Clinton County (Mark Muehlbach, Niels Rattenborg, Jack Van Benthuysen) 
    October 3, 1993, Carlyle Lake, Clinton County (Bob Kleiger)
September 26-28, 1975, Rend Lake, Franklin County (Paul Biggers, Bruce Peterjohn)
(IAB 176:33) (AB 30:1:80) (Bohlen 1978) (Robinson 1996)
September 27, 1987, Mark Twain NWR, Calhoun County (Skip Russell)
(IBB 4:2:43)
September 27-28, 1994, Carlyle Lake, Clinton County (Todd Fink)
(MJIB 4:2:74)
    September 27, 1994, Carlyle Lake, Clinton County (Todd Fink, Mark Seiffert, Albert Seppi)
    September 28, 1994, Carlyle Lake, Clinton County (Claudia Spener, Jack Van Benthuysen)
September 28, 1967, Mark Twain NWR, Calhoun County (Richard Anderson, Sally Vasse)
(IAB 145:14) (AFN 22:1:49) 
     (Anderson and Bauer 1968) (Bohlen 1978)
September 30 - October 17, 2000, Mel Price L&D, Madison County (Frank Homes)
(MJIB 10:2:73)
     September 30, 2000, Mel Price L&D, Madison County (Frank Homes)
     October 4, 2000, Mel Price L&D, Madison County (3) (Frank Homes)
     October 17, 2000, Mel Price L&D, Madison County (Frank Homes)
October 1, 1988, Crab Orchard NWR, Williamson County (2) (Bob Danley)
(Robinson 1996)
October 2-7, 1999, Carlyle Lake, Clinton County (Dan Kassebaum)
(NN 71:10:5) (MJIB 9:2:74)
     October 2, 1999, Carlyle Lake, Clinton County (Dan Kassebaum) 
     October 5, 1999, Carlyle Lake, Clinton County (Kent Lannert, Keith McMullen) 
     October 7, 1999, Carlyle Lake, Clinton County (Dan Kassebaum)
October 7-14, 2001, Carlyle Lake, Clinton County (Dan Kassebaum)
(MJIB 11:2:74)
     October 7, 2001, Carlyle Lake, Clinton County (Dan Kassebaum)
     October 8, 2001, Carlyle Lake, Clinton County (2) (Dan Kassebaum)
     October 10, 2001, Carlyle Lake, Clinton County (Keith McMullen)
     October 14, 2001, Carlyle Lake, Clinton County (Dan Kassebaum)
October 12, 2000, Carlyle Lake, Clinton County (Eric Kershner, Dan Olson, Jeff Walk)
(MJIB 10:2:73)
October 15-21, 2005, Carlyle Lake, Clinton County (Dan Kassebaum)
(MJIB 15:2:71)
     October 15, 2005, Carlyle Lake, Clinton County (Dan Kassebaum)
     October 16, 2005, Carlyle Lake, Clinton County (Dan Kassebaum)
     October 19, 2005, Carlyle Lake, Clinton County (Darrell Shambaugh)
     October 21, 2005, Carlyle Lake, Clinton County (Charlene Malone)
October 19-21, 1991, Carlyle Lake, Clinton County (George Barker, Terry Barker)
(MJIB 1:2:33) (AB 46:1:98)
    October 19, 1991, Carlyle Lake, Clinton County (George Barker, Terry Barker, Dan Kassebaum, Albert Seppi)
    October 20, 1991, Carlyle Lake, Clinton County (2) (Todd Fink, Dan Kassebaum, WGNSS)
    October 21, 1991, Carlyle Lake, Clinton County (2) (Jack Van Benthuysen)
fall 1999, Massac County (Frank Bennett) (MJIB 9:2:74)

Unaccepted records:
October 27, 1987, Carlyle Lake, Clinton County (IORC 1987.122; unaccepted) (IBB 5:1:8)

Black-headed Gull
- Chroicocephalus ridibundus

northern Illinois
May 5, 1982, Jackson Park, Cook County (Paul Clyne, Ron Goetz)
(SR 33:10) (IAB 202:46) (AB 36:859) (Mlodinow 1984) (Bohlen 1989)
June 1-3, 1981, Waukegan, Lake County (Jerry Rosenband)
(SR 29:10) (IAB 197:50) (AB 35:830) (Mlodinow 1984) (Bohlen 1989)
     June 2, 1981, Waukegan, Lake County (Paul Clyne)
July 2, 1982, Evanston, Cook County (Steve Mlodinow, James Ware, Pat Ware)
(SR 34:6) (IAB 203:30) (Mlodinow 1984) (Bohlen 1989)
July 14-15, 1976, Waukegan, Lake County and North Chicago, Cook County (Larry Balch, Charles Clark)
(IAB 180:44) (AB 30:5:963) 
     July 14, 1976, Waukegan, Lake County (Larry Balch, Charles Clark) (Bohlen 1978) (Mlodinow 1984) (Bohlen 1989) (Binford 1992)
     July 15, 1976, North Chicago, Cook County (photos - ISM) (Larry Balch) 
July 21, 1990, Waukegan Beach, Lake County (Danny Diaz)
September 29, 1978, Evanston, Cook County (Jerry Rosenband)
(IAB 188:47) (AB 33:183) (Bohlen 1978) (Mlodinow 1984) (Bohlen 1989)
October 24, 1981, Chicago, Cook County (Jim Landing)
(SR 31:12) (AB 36:184) (Bohlen 1989)
February 24 - March 25, 2007, Montrose Harbor, Cook County (Ann Harness, John Hockman)
(IORC 2007.002; JWH, EJM) (MJIB 16:2:59) 
     February 24, 2007, Montrose Harbor, Cook County (Ann Harness, John Hockman)
(MJIB 16:3:88-90) (MJIB 16:3:114) (MJIB 16:4:150)
     February 28, 2007, Montrose Harbor, Cook County (Bob Hughes, Greg Neise)
     March 2, 2007, Montrose Harbor, Cook County (Jim Frazier)
     March 3, 2007, Montrose Harbor, Cook County (Carolyn Fields, Emil Martinec, Steve Spitzer)
     March 11, 2007, Montrose Harbor, Cook County (Dan Kassebaum, Tim Kuesel)
     March 12, 2007, Montrose Harbor, Cook County (Steve Spitzer)
     March 14, 2007, Montrose Harbor, Cook County (Steve Spitzer)
     March 22, 2007, Montrose Harbor, Cook County (Kanae Hirabayashi, Steve Spitzer)

central Illinois
October 14, 1988 - January 22, 1989, Clinton Lake, DeWitt County (Myrna Deaton, Richard Palmer)
(IORC 1988.086; MFD, RDP, JBM, RTC) (IBB 6:1:11) 
     October 14, 1988, Clinton Lake, DeWitt County (Myrna Deaton, Richard Palmer) (IBB 5:2:27-37) (IBB 5:3:69) (IBB 5:4:47)
     October 18, 1988, Clinton Lake, DeWitt County (Joe Milosevich)
     December 11, Clinton Lake, DeWitt County (Bob Chapel)
     December 18, Clinton Lake, DeWitt County (CBC)
     January 22, 1989, Clinton Lake, DeWitt County (Myrna Deaton)
November 8, 1995, Clinton Lake, DeWitt County (Bob Chapel)
(IORC 1995.061; RTC) (MJIB 5:2:63) (MJIB 5:2:74) (MJIB 7:2:56)
February 10, 1973, Quiver Lake, Mason County (David Bohlen, Vern Kleen)
(IAB 167:18-20) (AB 27:3:624) (MJIB 2:3:104)
     (Bohlen 1978) (Mlodinow 1984) (Bohlen 1989) 

southern Illinois
September 10-25, 1988, Mississippi River at Alton, Madison County (David Becher, Jean Cook)
(IORC 1988.085; DZB, RG) (IBB 6:1:11) 
     (IBB 5:2:47) (Bohlen 1989) (WGNSS 1995)
December 4, 1985 - January 4, 1986, Horseshoe Lake, Madison County (Bill Rudden)
(IORC 1985.132; PS, RG, LH) (IBB 4:3:59)
     December 4-16, 1985, Horseshoe Lake, Madison County (Bill Rudden) (IBB 2:2:52) (IBB 2:3:76) (AB 40:287) (Bohlen 1989) (WGNSS 1995)
     January 4, 1986, Horseshoe Lake, Madison County (Bill Rudden)
December 13, 1987, Crab Orchard NWR, Williamson County (Bob Danley, Doug Robinson)
(IORC 1987.168; WDR) (IBB 5:1:5) 
     (IBB 4:3:69) (Bohlen 1989) (Robinson 1996)

Unaccepted records:
November 7, 1987, Clinton Lake, DeWitt County (IORC 1987.116; unaccepted) (IBB 5:1:8)

Little Gull
- Hydrocoloeus minutus

northern Illinois
August 14, 1985, Waukegan, Lake County (Mary Biss, Rich Biss)
(IBB 2:52) (Bohlen 1989)
August 15, 1964, Chicago, Cook County (Charles Clark)
(AFN 18:511) (Bohlen 1978)
August 15 - December 4, 1971, Chicago, Cook County (10) (Larry Balch)
(AB 25:5:864) (AB 26:1:72) (Bohlen 1978)
     August 15, 1971, Evanston, Cook County (sub-adult) (Pierre Ferverda)
     August 21, 1971, Waukegan, Cook County (2 adults) (Larry Balch)
August 18, 1973, Chicago, Cook County (Charles Clark)
(AB 28:1:61)
August 18 - September 13, 1939, Lincoln Park, Cook County (William Dreuth)
(Bird-Lore 41:6:10-11) (Clark and Nice 1950) (Ford 1956)
     August 18, 1939, Lincoln Park, Cook County (William Dreuth)
     August 21, 1939, Lincoln Park, Cook County (William Dreuth)
     September 13, 1939, Lincoln Park, Cook County (William Dreuth)
August 19, 1985, Waukegan, Cook County (Mary Biss, Rich Biss)
(IBB 2:2:52)
August 20, 1949, Wilmette, Cook County (Richard Zusi)
(Ford 1956)
August 23, 1967, Wolf Lake, Cook County (Jeff Sanders)
(AFN 22:1:49)
August 30, 1978, Chicago, Cook County (Larry Balch)
(AB 33:183) (Bohlen 1989)
August - November 1970, Chicago, Cook County (5) (Larry Balch)
(AB 25:1:66) (Bohlen 1978)
September 10, 1949, Montrose Harbor, Cook County (Amy Baldwin)
(Ford 1956)
September 16, 1956, Chicago, Cook County (2) (Laurie Binford)
(AFN 11:30) (Bohlen 1978)
September 20, 2007, Heidecke Lake, Grundy County (Scott Cohrs)
(MJIB 17:2:70)
September 23 - November 15, 1972, Chicago, Cook County (Larry Balch, Charles Clark, Jeff Sanders)
(AB 27:1:69)
October 9, 1966, Northwestern University, Cook County (Bedford Brown, Ira Sanders)
(IAB 140:14) (AFN 21:1:45)
October 14, 1976, Chicago, Cook County (Charles Clark)
(AB 31:2:184)
October 15-31, 1974, Chicago, Cook County
(AB 29:1:66)
October 18, 1994, Wilmette, Cook County (Jerry Rosenband)
(MJIB 4:2:73)
October 18-19, 1967, Chicago, Cook County (Bedford Brown)
(AFN 22:1:49) (AFN 22:5:613)
October 19-31, 1991, Wilmette, Cook County (John Koch)
(MJIB 1:2:32)
     October 19, 1991, Wilmette, Cook County (immature) (John Koch)
     October 28, 1991, Wilmette, Cook County (adult) (John Koch)
     October 31, 1991, Wilmette, Cook County (immature) (Eric Walters, Bob Hughes)
October 22, 1965, Chicago, Cook County (Bedford Brown)
(AFN 20:1:54) (AFN 22:5:613)
     Audubon Field Notes (20:1:54) dates this record October 2, 1965, Audubon Field Notes (22:5:613) dates this record October 22, 1965.
October 26 - November 1, 1958, Lincoln Park, Cook County (Charles Clark)
(AFN 13:36) (Bohlen 1978)
October 28, 1995, Wilmette, Cook County (Eric Walters)
(MJIB 5:2:74)
October 29, 1985, Waukegan, Lake County (Mary Biss, Rich Biss)
(IBB 2:2:52) (Bohlen 1989)
October 31, 1993, Chicago, Cook County (Al Stokie)
(MJIB 3:2:72)
November 2, 1992, Wilmette, Cook County (John Koch, Eric Walters)
(MJIB 2:2:73)
November 2-3, 1991, Saganashkee Slough, Cook County (Wes Serafin)
(MJIB 1:2:32)
November 2-6, 1985, Zion, Lake County (1/2) (Jerry Rosenband)
(IORC 1985.130; JBM) (IBB 2:2:52) (IBB 4:3:61)
     November 2, 1985, Zion, Lake County (Jerry Rosenband)
     November 6, 1985, Zion, Lake County (Joe Milosevich)
November 4, 1992, Saganashkee Slough, Cook County (Wes Serafin)
(MJIB 2:2:73)
November 5, 1990, Wilmette, Cook County (Eric Walters)
(IBB 7:2:50)
November 5, 1990, Joliet, Will County (Joe Milosevich)
(IBB 7:2:50)
November 6, 1985, Zion, Lake County (Joe Milosevich)
(IORC 1985.130; JBM) (IBB 4:3:61)
November 10, 1994, Evanston, Cook County (John Koch)
(MJIB 4:2:73)
November 15 - December 11, 1938, Lincoln Park, Cook County (William Dreuth)
(Bird-Lore 41:1:57:58) (Clark and Nice 1950) (Ford 1956)
November 16, 1990, Evanston/Wilmette, Cook County (Eric Walters)
(IBB 7:2:50)
November 18-19, 1988, Waukegan, Lake County (Joe Milosevich)
(IBB 4:4:73) (IBB 5:2:47)
November 22, 1973, Chicago, Cook County (Ted Nork)
(AB 28:1:61)
November 22, 1992, Wilmette, Cook County (Bob Hughes, Al Stokie)
(MJIB 2:2:73)
November 24, 1995, Illinois Beach SP, Lake County (Al Stokie)
(MJIB 5:2:74)
November 25, 1973, Chicago, Cook County (Charles Clark)
(AB 28:1:61) (Bohlen 1978)
November 26, 1975, Evanston, Cook County (two) (Richard Sandburg)
(AB 30:1:80) (Bohlen 1978)
November 26, 1986, Montrose, Cook County (Joe Milosevich)
(IORC 1986.198; JBM) (IBB 3:2:40) (IBB 5:1:6)
November 26, 1992, Chicago, Cook County (Bob Hughes, Jim Landing)
(MJIB 2:2:73)
November 26-27, 1983, Zion, Lake County (3) (Tom Pucelik)
(SR 39:16) (Bohlen 1989)
November 26-29, 1987, Wilmette, Cook County (Joel Greenberg)
(IBB 4:2:43)
November 27, 1985, Wilmette Cook County (Rich Biss)
(IBB 2:2:52)
November 28, 1975, Chicago, Cook County (David Bohlen)
(AB 30:1:80)
November 30, 1977, Wilmette, Cook County (Jerry Rosenband)
(AB 32:2:213)
December 1, 1984 - January 1, 1985, Zion, Lake County (3)
(IBB 1:2:1-10) (IBB 1:3:68)
December 4, 1988, Zion, Lake County (Rich Biss)
(IBB 5:3:69)
December 4, 1990, Chicago, Cook County (Bob Hughes)
(IBB 7:2:50)
December 6, 1984, Wilmette, Cook County (Rich Biss)
(IBB 1:3:68)
December 10, 1989, Zion, Lake County (Jim Landing)
(IBB 6:2:44)
December 11, 1985, Gillson Park, Cook County (Rich Biss)
(IBB 2:3:76)
December 19, 1984, Chicago, Cook County (3)
(AB 39:173) (Bohlen 1989)
December 20, 1970, Chicago, Cook County (David Easterla, Ted Nork)
(AB 25:3:586) (Bohlen 1978)
December 25, 1979 - January 6, 1980, Chicago, Cook County (6/8) (Rich Biss, Steve Mlodinow)
(AB 34:278) (Bohlen 1989)
December 26, 1982 - January 2, 1983, Barrington, Cook County (Steve Olson, Chuck Westcott)
(AB 37:307) (Bohlen 1989)
December 30, 1973, Chicago, Cook County (Jeff Sanders)
(AB 28:2:379)
December 1971, Calumet Harbor, Cook County (Jack Armstrong)
(Bohlen 1978)
January 2, 1988, Zion, Lake County (Joel Greenberg)
(IORC 1988.006; JG) (IBB 4:3:69) (IBB 5:1:6)
February 14, 1981, Zion, Lake County (Jim Neal)
(SR 28:5) (Bohlen 1989)
April 2-3, 1986, Jackson Park, Cook County (Harriet Rylaarsdam)
(IBB 2:4:94) (Bohlen 1989)
April 8-9, 1983, Chicago, Cook County (Rich DeCoster)
(SR 37:17) (Bohlen 1989)
April 13, 1997, Jackson Park, Cook County (Paul Clyne)
April 23, 1990, Waukegan Beach, Lake County (Danny Diaz)
(IBB 6:4:88)
April 24, 1994, Chicago Botanic Garden/Skokie Lagoons, Cook County (Laurie Binford)
(MJIB 3:4:150)
April 25, 1985, Waukegan, Lake County (Rich Biss, Mary Biss)
(IBB 1:4:87) (Bohlen 1989)
April 26, 1992, Waukegan, Lake County (2) (Danny Diaz)
(MJIB 1:4:148)
April 27, 1976, Chicago, Cook County (Jerry Rosenband, Larry Balch)
(Bohlen 1978)
April 29, 1938, Lincoln Park, Cook County (William Dreuth)
(Bird-Lore 40:4:290-291) (Clark and Nice 1950) (Ford 1956) (Bohlen 1978) (Bohlen 1989)
May 1, 1990, Waukegan, Lake County (Michael Hogg)
(IBB 6:4:88)
May 1, 2001, Split Rock Lake, La Salle County (Jim Hampson)
(MJIB 10:4:152)
May 5, 1990, Waukegan, Lake County (Bob Hughes, Andy Sigler)
(IBB 6:3:55-61) (IBB 6:4:88)
May 9, 1943, Lincoln Park, Cook County (William Dreuth)
(Audubon Magazine 45:4:8-9) (Clark and Nice 1950) (Ford 1956)
May 18-19, 1981, Chicago, Cook County (Rich Biss, Jim Landing)
(AB 35:830) (Bohlen 1989)
May 22, 1989, Waukegan, Lake County (Jim Neal)
(IBB 5:4:87)
May 25, 1992, Waukegan, Lake County (Danny Diaz)
(MJIB 1:4:148)
May 25-26, 1991, Great Lakes NTC, Lake County (Danny Diaz, Jim Neal)
(IBB 7:4:96)
May 28, 1942, Chicago, Cook County (William Dreuth)
(Clark and Nice 1950) (Bohlen 1989)
June 20 - July 2, 1989, Great Lakes NTC, Lake County (Jim Neal)
(IBB 6:1:18-19)
     June 20, 1989, Great Lakes NTC, Lake County (Jim Neal)
     June 23, 1989, Great Lakes NTC, Lake County (Jim Neal)
     June 24, 1989, Great Lakes NTC, Lake County (2) (Jim Neal)
     July 2, 1989, Great Lakes NTC, Lake County (3) (Jim Neal)
June 25 - July 20, 1999, Great Lakes NTC, Lake County (Eric Walters)
(MJIB 9:1:32)
July 16, 1990, Chicago, Cook County (Bob Hughes)
(IBB 7:2:50)
July 16-17, 1990, Wilmette, Cook County (Eric Walters)
(IBB 7:1:19) (IBB 7:2:50)
     July 16, 1990, Wilmette, Cook County (Eric Walters)
     July 17, 1990, Wilmette, Cook County (2) (Eric Walters)

central Illinois
September 16, 1994, Lake Springfield, Sangamon County (David Bohlen)
(MJIB 4:2:73)
September 2006, Lake Springfield, Sangamon County (David Bohlen)
(Bohlen, in manuscript)
October 15-16, 2005, Lake Springfield, Sangamon County (David Bohlen)
(Bohlen, in manuscript)
October 23 - December 1, 1996, Clinton Lake, DeWitt County (Bob Chapel)
(MJIB 6:2:74)
     October 23, 1996, Clinton Lake, DeWitt County (Bob Chapel)
     November 2, 1996, Clinton Lake, DeWitt County (David Bohlen, Dan Kassebaum, Albert Seppi)
     December 1, 1996, Clinton Lake, DeWitt County (Bob Chapel)
October 27, 1993, Clinton Lake, DeWitt County (Bob Chapel)
(MJIB 3:2:72)
October 29, 1995, Clinton Lake, DeWitt County (Bob Chapel)
(IORC 1995.060; RTC) (MJIB 5:2:74) (MJIB 7:2:56)
October 30 - December 4, 1994, Clinton Lake, DeWitt County (Bob Chapel)
(MJIB 4:2:73) (MJIB 4:3:116)
November 1, 1989, Clinton Lake, DeWitt County (Bob Chapel)
(IBB 6:2:44)
November 7, 1995, Pekin, Tazewell County (Kevin Richmond)
(MJIB 5:2:74)
November 15, 1992, Clinton Lake, DeWitt County (Bob Chapel)
(MJIB 2:2:73)
November 16-29, 1991, Lake Decatur, Macon County (Myrna Deaton)
(MJIB 1:2:32)
     November 16, 1991, Lake Decatur, Macon County (adult) (Myrna Deaton)
     November 23-29, 1991, Lake Decatur, Macon County (immature) (Bob Chapel, Myrna Deaton)
November 20, 2007, Lake Decatur, Macon County (Myrna Deaton)
November 20 - December 20, 1992, Lake Springfield, Sangamon County (David Bohlen)
(MJIB 2:2:73) (MJIB 2:3:111)
November 24 - December 8, 1990, Clinton Lake, DeWitt County (Richard Sandburg)
(IBB 7:2:50)
     November 24, 1990, Clinton Lake, DeWitt County (Richard Sandburg)
     December 6-8, 1990, Clinton Lake, DeWitt County (Kevin Richmond, Richard Sandburg, Bob Chapel)
November 26 - December 2, 1991, Lake Springfield, Sangamon County (David Bohlen, Dennis Oehmke, Tedd Teeter)
(MJIB 1:2:32) (MJIB 1:3:111)
     November 26-27, 1991, Lake Springfield, Sangamon County (David Bohlen, Dennis Oehmke, Tedd Teeter)
     December 2, 1991, Lake Springfield, Sangamon County (David Bohlen)
November 29, 1985, Lake Decatur, Macon County (Richard Sandburg, Richard Palmer)
(IORC 1985.131; RP) (IBB 4:3:59)
     (IBB 2:2:52) (AB 40:120) (Bohlen 1989)
December 4-15, 1991, Clinton Lake, DeWitt County (Richard Sandburg)
(MJIB 1:2:32) (MJIB 1:3:111)
December 5, 1999, Lake Shelbyville, Shelby County (Bob Chapel)
(MJIB 9:2:73) (MJIB 9:3:114)
December 8, 1990, Clinton Lake, DeWitt County (Bob Chapel)
December 13, 2007 - January 1, 2008, Lake Springfield, Sangamon County (David Bohlen)
(MJIB 17:3:112)
December 20, 1966, Illinois River at Chillicothe, Peoria County (Jeff Sanders)
(IAB 141:12)
March 31, 2001, Lake Shelbyville, Shelby County (Bob Shelby)
(MJIB 10:4:152)
April 3-6, 2000, Lake Springfield, Sangamon County (David Bohlen)
(MJIB 9:4:149)
April 8, 2000, Clinton Lake, DeWitt County (Bob Chapel)
(MJIB 9:4:149)
April 13 - May 14, 1995, Lake Decatur, Macon County (Myrna Deaton)
(MJIB 4:4:151)
April 23, 2009, Sangamon County (David Bohlen)
(MJIB 18:4:149)
May 8-11, 1991, Spring Lake CA, Tazewell County (Kevin Richmond, Mike Baum)
(IBB 7:4:96)
May 16-17, 1988, Chautauqua NWR and Clear Lake, Mason County (Louise Augustine, Kevin Richmond)
(IBB 4:4:87)
July 29, 1994, Rice Lake CA, Fulton County (Kevin Richmond)
(MJIB 4:2:73)

southern Illinois
October 5, 1992, Mark Twain NWR, Calhoun County (Jack Van Benthuysen, Helen Wuestenfeld)
(MJIB 2:2:73)
October 16 - November 4, 1991, Carlyle Lake, Clinton County (Dan Kassebaum)
(NN 63:10:102) (MJIB 1:2:32) (AB 46:1:98)
     October 16, 1991, Dam East Boat Launch, Clinton County (adult) (Dan Kassebaum)
     October 20, 1991, Dam East Boat Launch, Clinton County (adult) (Todd Fink, Dan Kassebaum, WGNSS)
     October 21, 1991, Carlyle Lake, Clinton County (adult) (Jack Van Benthuysen)
     November 4, 1991, West Spillway Access, Clinton County (1st winter) (Dan Kassebaum)
October 22, 1993, Carlyle Lake, Clinton County (Jack Van Benthuysen)
(NN 65:10) (MJIB 3:2:72) (AB 48:1:116)
October 23-30, 1987, Carlyle Lake, Clinton County (Ron Goetz)
(IORC 1987.115; RG) (IBB 5:1:5)
     October 23, 1987, South Shore State Park, Clinton County (Ron Goetz) (NN 59:10:96) (IBB 4:2:43) (AB 42:1:83) (Bohlen 1989)
     October 24, 1987, Carlyle Lake, Clinton County (WGNSS)
     October 30, 1987, South Shore State Park, Clinton County (Ron Goetz)
October 26 - November 30, 2002, Carlyle Lake, Clinton County (Dan Kassebaum)
(MJIB 12:2:74) (NAB 57:1:58)
     October 26, 2002, South Shore State Park, Clinton County (Dan Kassebaum, Bill Rowe, WGNSS)
     October 27, 2002, South Shore State Park, Clinton County (Dan Kassebaum, Kevin Richmond)
     November 9, 2002, Coles Creek Boat Launch, Clinton County (Dan Kassebaum)
     November 30, 2002, Carlyle Lake, Clinton County (Albert Seppi)
October 31, 2009, Carlyle Lake, Clinton County (Dan Kassebaum)
November 3, 1994, Carlyle Lake, Clinton County (Jack Van Benthuysen)
(NN 67:1:6) (FN 49:1:54)
November 14-15, 1962, Frank Holten State Park, St. Clair County (Richard Anderson)
(AFN 17:37) 
     (Anderson and Bauer 1968) (Bohlen 1978) (Bohlen 1989) (WGNSS 1995, 1998)
November 19, 2006, Rend Lake, Franklin County (probable) (Dan Kassebaum)

November 21, 2009, Carlyle Lake, Clinton County (Dan Kassebaum)

November 21 - December 7, 1989, Carlyle Sewage Pond, Clinton County (Bill Rudden)
(NN 62:1:5) (NN 62:2:10) (IBB 6:2:44) (AB 44:2:275)
     November 21, 1989, Carlyle Sewage Pond, Clinton County (Bill Rudden, Ron Goetz)
     November 23, 1989, Carlyle Sewage Pond, Clinton County (WGNSS)
     December 7, 1989, Carlyle Sewage Pond, Clinton County (Bill Rudden)
November 22-27, 2007, Carlyle Sewage Pond, Clinton County (Bill Rudden)
(IORC 2007.035; BR, DMK, TAM) (MJIB 17:2:50) (MJIB 17:2:70)
     November 22, 2007, Carlyle Sewage Pond, Clinton County (2) (Bill Rudden, later Dan Kassebaum)
     November 23, 2007, Carlyle Sewage Pond, Clinton County (Leroy Harrison, Dan Kassebaum, Mark Seiffert, Bob Shelby, WGNSS)
     November 24, 2007, Carlyle Sewage Pond, Clinton County (Leroy Harrison, Dan Kassebaum, Travis Mahan, Mark Seiffert, Bob Shelby, WGNSS)
     November 25, 2007, Carlyle Sewage Pond, Clinton County (Dan Kassebaum, Keith McMullen, Mark Seiffert, Eric Walters, WGNSS)
     November 26, 2007, Carlyle Sewage Pond, Clinton County (Steve Griffaw)
     November 27, 2007, Carlyle Sewage Pond, Clinton County (Pat Lueders, WGNSS)
November 29, 1975, Rend Lake, Franklin County (Mike Morrison)
(IAB 176:33) (AB 30:3:726) (Robinson 1996)
     Illinois Audubon Bulletin (176:33) dates this record November 29, 1975. Robinson (1996) dates this record November 25, 1975.
December 6, 2003, Crab Orchard NWR, Williamson County (Trevor Hinckley)
February 27, 2004, Mermet Lake SFWA, Massac County (Frank Bennett)
(IORC 2004.071; FKB) (MJIB 13:3:113) (MJIB 17:2:50)
March 25, 2000, Mermet Lake SFWA, Massac County (Frank Bennett, Dan Kassebaum, Keith McMullen)
(IORC 2000.020; FB) 
     March 25, 2000, Mermet Lake SFWA, Massac County (Frank Bennett, Dan Kassebaum, Keith McMullen) (MJIB 9:4:149) (MJIB 10:2:56)
March 29, 2008, Teague Hill Road, Massac County (Frank Bennett)
(MJIB 17:4:149)
April 2, 2004, East Fork Lake, Richland County (Leroy Harrison)
(MJIB 13:4:149)
April 4, 1991, Mississippi River at Alton, Madison County
(WGNSS 1995, 1998)
April 9, 1976, Crab Orchard NWR, Williamson County (Mike Homoya, Bruce Peterjohn)
(IAB 178:31) (AB 30:4:849) 
     (Bohlen 1978) (Bohlen 1989) (Robinson 1996)
April 18-24, 1984, Carlyle Sewage Pond, Clinton County (Skip Russell)
(NN 56:6:49) (NN 58:5:34) (WGNSS 1995, 1998)
     April 18, 1984,  Carlyle Sewage Pond, Clinton County (Skip Russell) (SR 41:18) (IAB 210:40) (AB 38:5:918) (Bohlen 1989)
     April 24, 1984,  Carlyle Sewage Pond, Clinton County (Phoebe Snetsinger)
May 11-12, 2009, Melvin Price L&D, Madison County (Dan Kassebaum, Keith McMullen, Mark Seiffert)
(MJIB 18:4:149) (NAB 63:3:431)

Ross's Gull
- Rhodostethia rosea

northern Illinois
November 19 - December 2, 1978, Wilmette and Chicago, Cook County (Andy Sigler)
(IORC 1978.002, DBJ, HDB, RB) (IBB 6:1:11) 
     November 19, 1978, Wilmette Harbor, Cook County (Andy Sigler) (IAB 188:49) (AB 33:140-142) (Mlodinow 1984) (Bohlen 1989) (MJIB 15:3:87-89)
     November 29, 1978, Fullerton Avenue Beach, Cook County (Lucy Gemlo, Walter Hopkins)
     November 30, 1978, North Avenue Beach and Montrose Beach, Cook County (David Bohlen, Jerry Rosenband, Larry Balch)
     December 1, 1978, between North Avenue and Fullerton, Cook County
     December 2, 1978, Chicago Harbor, Cook County

southern Illinois
December 31, 1991 - January 9, 1992, Riverlands EDA, St. Charles County, MO/Mel Price L&D, Madison County, IL (Tim Barksdale)
(WGNSS 1995)
     January 1, 1992, Mel Price L&D, Madison County (Judy DeNeal, Todd Fink, Dan Kassebaum)

Black-tailed Gull
- Larus crassirostris

northern Illinois
May 1, 2008, North Point Marina, Lake County (Eric Walters)
(pending IORC review) (MJIB 17:4:149)
June 13, 2003, Illinois Beach State Park, Lake County
(pending IORC review)
August 7, 2003, Montrose Beach, Cook County (Bob Hughes)
(IORC 2003.012; RDH, KH) (MJIB 13:2:50) (MJIB 13:2:56) (MJIB 13:2:71)

southern Illinois
March 22, 2008, American Bottoms, Monroe County (Bill Rudden)
(pending IORC review) (MJIB 17:4:149)

Mew Gull
- Larus canus

northern Illinois
November 13, 1998, Grant Park, Cook County (Doug Stotz)
(IORC 1998.064; DS) (MJIB 8:2:57) (MJIB 8:2:63) (MJIB 8:2:73)
December 3, 1992, Brandon Road L&D, Will County (Joe Milosevich)
(MJIB 2:3:111-112)
December 15, 1991, Diversey Harbor, Cook County (Bob Hughes)
(MJIB 1:3:103) (MJIB 1:3:111)
December 19-21, 1993, Rock Island, Rock Island County (Pete Peterson, Bill Bertrand)
(MJIB 3:3:86-101) (MJIB 3:3:116)
December 19-31, 1982, Moline, Rock Island County (Pete Peterson)
(SR 36:7) (Bohlen 1989)
December 23, 1994, Evanston, Cook County (Christine Philip)
(MJIB 4:3:87-100) (MJIB 4:3:116)
January 2-3, 1994, Montrose Harbor, Cook County (Bob Hughes)
(MJIB 3:3:116)
January 15, 1992, Montrose Harbor, Cook County (Bob Hughes)
(MJIB 1:3:103) (MJIB 1:3:111)
January 15, 1992, Diversey Harbor, Cook County (Bob Hughes)
(MJIB 1:3:103) (MJIB 1:3:111)
January 20-25, 1993, Waukegan, Lake County (Al Stokie) (MJIB 2:3:100-101) (MJIB 2:3:111)
     January 20, 1993, Waukegan, Lake County (Al Stokie)
     January 21, 1993, Waukegan, Lake County (Danny Diaz, Dave Johnson)
     January 22, 1993, Waukegan, Lake County (Jim Neal, Dave Johnson)     
February 1, 1994, Waukegan, Lake County (Danny Diaz)
(IORC 1994.005; DD, DBJ) (MJIB 3:3:116) (MJIB 7:2:56)
February 20, 1992, Burnham Harbor, Cook County (Bob Hughes)
(IORC 1992.018; RDH) (MJIB 1:3:103) (MJIB 1:3:110-111) (MJIB 7:2:56)
February 22, 1993, Montrose, Cook County (Bob Hughes)
(MJIB 2:2:100) (MJIB 2:3:112)
February 25, 1993, Montrose, Cook County (Bob Hughes)
(MJIB 2:3:100) (MJIB 2:3:112)
March 22, 1996, Montrose, Cook County (Bob Hughes)
(IORC 1996.021; RDH, JO) (MJIB 5:4:148) (MJIB 7:2:56)
April 3, 1996, Montrose, Cook County (Bob Hughes)
(MJIB 5:4:148)
April 11, 1987, Montrose, Cook County (Larry Balch, Jim Landing)
(IORC 1987.059; JEL, LCB, JBM) (IBB 3:4:93-94) (IBB 5:1:5) (Bohlen 1989)

central Illinois
November 10, 1997, Lake Springfield, Sangamon County (David Bohlen)
(IORC 1997.045; HDB) (MJIB 7:2:73) (MJIB 8:2:57)
November 22, 2004, Clinton Lake, DeWitt County (Chris Wood)
(IORC 2004.020; CW) (MJIB 14:2:72) (MJIB 15:2:58)
January 28, 1996, Clinton Lake, DeWitt County (Myrna Deaton)
(IORC 1996.039; MFD) (MJIB 5:3:116) (MJIB 7:2:56)
March 5, 1993, Lake Decatur, Macon County (Myrna Deaton)
(MJIB 2:4:149)
March 23, 1996, Clinton Lake, DeWitt County (Bob Chapel)
(IORC 1996.022; RTC) (MJIB 5:4:148) (MJIB 7:2:56)
March 26, 1997, Lake Vermilion, Vermilion County (Bob Chapel)
(IORC 1996.029; RTC) (MJIB 6:4:149) (MJIB 8:2:57)
April 30, 1992, Sangchris Lake SP, Sangamon/Christian County (David Bohlen)
(MJIB 1:4:138) (MJIB 1:4:148)
May 23, 1996, Lake Springfield, Sangamon County (David Bohlen)
(IORC 1996.023; HDB) (MJIB 5:4:148) (MJIB 7:2:56)

southern Illinois
October 7, 1984, Rend Lake, Franklin County (Denny Jones, Leroy Harrison)
(IBB 1:2:20) (Bohlen 1989) (Robinson 1996)
December 4-5, 1995, Carlyle Lake, Clinton County (Dan Kassebaum)
(IORC 1995.071: DMK, AS) (MJIB 5:3:116) (MJIB 16:2:59) (WGNSS 1998)
     December 4, 1995, West Access Spillway, Clinton County (Dan Kassebaum)
     December 5, 1995, West Access Spillway, Clinton County (Mark Seiffert, Albert Seppi - photos)
January 16, 2005, Carlyle Lake, Clinton County (Dan Kassebaum) (IORC 2005.007; DMK, TAM)
 (MJIB 14:2:61) (MJIB 14:3:112) (NAB 59:2:267)
     January 16, 2005, West Access Marina, Clinton County (Joe Eades, Travis Mahan, Jim Malone, Charlene Malone, Dave Rogles, Mike Kutska, Craig Taylor)
February 12 - March 8, 1986, Carlyle Lake, Clinton County (Bill Rudden)
(IORC 1986.075; RG, HDB, DWJ, DBJ, JEL)
     February 12, 1986, West Access Spillway, Clinton County (Bill Rudden, Ron Goetz) (NN 58:4:26) (IBB 2:3:76) (IBB 2:4:94) (IBB 4:3:59)
     February 13, 1986, West Access Spillway, Clinton County (WGNSS) (AB 40:2:287) (AB 40:3:479) (Bohlen 1989) (WGNSS 1995)
     February 15, 1986, West Access Spillway, Clinton County (IORC, WGNSS) 
     February 16, 1986, West Access Spillway, Clinton County (IORC, WGNSS)
     March 1, 1986, West Access Spillway, Clinton County (Bill Rudden)   
     March 6, 1986, West Access Spillway, Clinton County (Bill Rudden)
     March 8, 1986, West Access Spillway, Clinton County (Skip Russell, Andrea Russell)
February 23-24, 2008, Carlyle Lake, Clinton County (Dan Kassebaum)
(IORC 2008.007; DMK, BR, TAM, FMH, TB) (MJIB 17:2:50) (MJIB 17:2:70) 
     February 23, 2008, West Access Marina, Clinton County (Tom Bormann, Joe Eades, Dan Kassebaum, Travis Mahan, Charlene Malone, Jim Malone)
     February 23, 2008, West Access Marina, Clinton County (Charley Marbut, Dave Rogles, Bill Rudden, Mark Seiffert, Mike Seiffert) (MJIB 17:3:86-89) (MJIB 17:3:112)
     February 24, 2008, West Access Marina, Clinton County (Bruce Heimer, Frank Holmes, Dan Kassebaum, Mike Madsen, Keith McMullen, Andy Sigler, Josh Uffman)

unaccepted/undocumented records:
October 15, 1990, Carlyle Lake, Clinton County (Roger Hayes) (NN 62:10:77)
November 22, 1986, Crab Orchard NWR, Williamson County (IORC 1986.064; unaccepted) (IBB 5:1:8)
December 11, 1987, Jackson Park, Cook County (IORC 1987.169; unaccepted) (IBB 5:1:8)
January 24, 1998, Montrose, Cook County (IORC 1998.005; unaccepted) (MJIB 8:2:61)
February 11, 1985, Montrose Harbor, Cook County (IORC 1985.154; unaccepted) (IBB 4:3:62)
February 14, 1988, Horseshoe Lake, Madison County (1st winter) (Richard Anderson) (IORC 1988.018; unaccepted) (IBB 5:1:8) (NN 60:4:25)
February 28, 1986, Crab Orchard NWR, Williamson County (IORC 1986.076; unaccepted) (IBB 4:3:62)

Western Gull
- Larus occidentalis

northern Illinois
October 19 - November 17, 1927, Lincoln Park, Cook County
(Earl G. Wright, Edwin Komarek) (IORC 1927.001) (MJIB 7:2:56)
      October 19, 1927, Lincoln Park, Cook County (Earl G. Wright, Edwin Komarek) (Auk 45:200) (Ford, Sanborn and Coursen 1934) (Ford 1956)
      November 17, 1927, Lincoln Park, Cook County (specimen - CAS 1663) (A. M. Bailey) (Smith 1958, 1972) (Bohlen 1978) (Mlodinow 1984) (Bohlen 1989)

Unaccepted/Unresolved records:
November 27 - December 3, 1995, Wilmette and Chicago, Cook County (sub-adult) (IORC 1995.041; unaccepted) (MJIB 7:2:63)
     November 27, 1995, Gillson Park, Cook County
     November 28, 1995, Rainbow Beach, Chicago, Cook County
     November 29, 1995, Rainbow Beach, Chicago, Cook County
     December 3, 1995, Gillson Park, Cook County
January 7, 2001, Starved Rock SP, La Salle County (MJIB 10:3:120)
January 15-16, 1991, Moline, Rock Island County (Pete Peterson)
January 19, 1986, Rend Lake, Franklin County (IORC 1986.086; species unresolved) (IBB 4:3:62)
January 22-23, 2000, Lake Springfield, Sangamon County (MJIB 9:3:120)
February 18, 1950, Randolph Street Harbor, Cook County (Larry Balch, Charles Clark) (Smith and Parmalee 1955) 
     (Smith 1972) (Bohlen 1978) (Mlodinow 1984) (Bohlen 1989) (Binford 1992)

California Gull
- Larus californicus

northern Illinois
October 26, 1974 Chicago, Cook County (Larry Balch, Lewis Cooper, Jerry Rosenband)
(IAB 172:29) (AB 29:1:66)
     (Bohlen 1978) (Mlodinow 1984) (Bohlen 1989) (MJIB 2:2:62-63)
October 28, 2000, Settler's Hill Landfill, Kane County (Jonathan Simms)
(IORC 2000.048; JS) (MJIB 10:2:55) (MJIB 10:2:73)
October 28-29, 1980, Jackson Park, Cook County (Paul Clyne, Ron Goetz)
(SR 27:8)
November 1-4, 2008, Waukegan Beach, Lake County (Dan Kassebaum, Keith McMullen, Mark Seiffert)
(MJIB 18:2:68)
November 8-22, 2008, Stateline Beach - North Point Marina, Lake County (Bob Hughes)
(MJIB 18:2:68) (NAB 63:1:84)
     November 8, 2008, Stateline Beach - North Point Marina, Lake County (Bob Hughes)
     November 12, 2008, Stateline Beach - North Point Marina, Lake County (Andy Sigler, Eric Walters)
     November 22, 2008, Stateline Beach - North Point Marina, Lake County (Dan Kassebaum, Mark Seiffert)
November 16, 2008, Illinois Beach SP, Lake County (Mike Furmanek)
(MJIB 18:2:68)
November 17, 2007, Independence Grove FP, Lake County (Bob Hughes)
(IORC 2007.032; RDH) (MJIB 17:2:52) (MJIB 17:2:70)
November 18, 2001, Waukegan, Lake County (Carolyn Fields)
(IORC 2001.059; CF) (MJIB 11:2:65)
November 18, 2006, Illinois Beach SP, Lake County (Doug Stotz)
(IBET)
November 24, 2007, North Point Marina, Lake County (Bob Hughes)
(IORC 2007.033; RDH) (MJIB 17:2:52) (MJIB 17:2:70)
November 26, 1992, Shedd Aquarium, Cook County (Andy Sigler, Bob Hughes)
(MJIB 2:2:62-63) (MJIB 2:2:73) (MJIB 4:2:47)
     November 26, 1992, Shedd Aquarium, Cook County (Andy Sigler, Bob Hughes, Catherine Monday, Jim Landing, Rich Biss)
November 28, 2004, Winthrop Harbor, Lake County (Bob Hughes)
(MJIB 14:2:72)
December 3-6, 2008, Winthrop Harbor, Lake County, (Eric Walters, Bob Hughes)
(MJIB 18:3:109) (NAB 63:2:260)
December 2-3, 1991, O'Brien L&D, Cook County (Bob Hughes)
(MJIB 1:3:103) (MJIB 1:3:111)
January 3, 2004, Winthrop Harbor, Lake County (Bob Hughes)
(IORC 2004.003; RDH) (MJIB 15:2:58)
January 22-23, 2000, Calumet Park, Cook County (2) (Jim Landing)
(IORC 2000.016; JEL) (MJIB 9:3:120) (MJIB 10:2:55)
January 23-24, 1999, Belmont/Montrose Harbors, Cook County (Geoff Williamson)
(IORC 1999.005; GW, DFS) (MJIB 9:2:53)
February 4, 2006, Lake Calumet, Cook County (Walter Marcisz, Bob Hughes, Carolyn Marsh)
(MJIB 15:3:112-113) (NAB 60:2:233)
February 8, 2003, Lake Calumet, Cook County
(MJIB 12:3:114)
March 7, 2009, Aurora, Kane County (Jon Duerr)
(MJIB 18:4:149)
March 16 - April 14, 2009, North Point Marina, Lake County (Carolyn Fields)
(IORC 2009.020; CSF) (MJIB 18:3:85) (MJIB 18:4:149) (NAB 63:3:431)
March 19, 2006, Little Calumet River, Cook County (Bob Hughes)
(MJIB 15:4:150)
March 1940, Jackson Park, Cook County (Dr. Alfred Lewy)
(Bird-Lore 42:3:306) (Smith and Parmalee 1955) (IAB 144:13) (Smith 1972) (Bohlen 1989)
April 2, 1996, Montrose, Cook County (Bob Hughes)
(IORC 1996.024; RDH) (MJIB 5:4:148) (MJIB 7:2:56)
May 30, 2009, North Point Marina, Lake County (Tom Lally)
(IORC 2009.019; TL) (MJIB 18:3:85) (MJIB 18:4:149) (NAB 63:3:431)
June 13 - July 29, 2002, Great Lakes NTC, Lake County (Dave Johnson)
(IORC 2002.022; DBJ) (MJIB 12:2:58) (NAB 63:4:598)
June 13, 2009, North Point Marina, Lake County (Tom Lally)
(MJIB 18:4:149)
June 19, 2005, Waukegan Beach, Lake County (Al Stokie)
(IORC 2005.012; AS) (MJIB 15:1:26) (MJIB 15:2:58)

central Illinois
October 29 - November 11, 2006, Lake Decatur, Macon County (Travis Mahan)
(IORC 2006.041; TAM) (MJIB 16:2:60)
     October 29, 2006, Lake Decatur, Macon County (Travis Mahan)
     November 11, 2006, Lake Decatur, Macon County (Travis Mahan)
November 10, 1996, Lake Shelbyville, Shelby/Moultrie County (Bob Chapel)
(MJIB 6:2:74)
December 5, 1992, Lake Springfield, Sangamon County (David Bohlen)
(MJIB 2:2:73)
December 12, 1992. Clinton Lake, DeWitt County (Bob Chapel)
(MJIB 2:2:73) (MJIB 2:3:112)
January 6, 1994, Peoria L&D, Peoria County (Kevin Richmond)
(MJIB 3:3:116)
February 25, 1995, Clinton Lake, DeWitt County (Bob Chapel)
(MJIB 4:3:116)
February 25-27, 1993, Tazewell County (Kevin Richmond)
(MJIB 2:3:112)
March 4-8, 1987, Rice Lake, Fulton County (Louise Augustine, Tom Pucelik, Kevin Richmond)
(IBB 3:4:93) (Bohlen 1989)
March 5, 1994, Clinton Lake, DeWitt County (Bob Chapel)
(MJIB 3:4:139-140) (MJIB 3:4:150)
May 5, 1990, Lake Springfield, Sangamon County (David Bohlen)
(IBB 6:3:55-61) (IBB 6:4:88)
May 16 - June, 1998, Lake Springfield, Sangamon County (David Bohlen)
(IORC 1998.017, HDB, JR) (MJIB 8:2:57)
May 20, 2000, Sangamon County
(MJIB 9:4:158)
May 21, 1976, Chautauqua NWR, Mason County (Richard Sandburg, Pam Gibson)
(IAB 178:31) (AB 30:4:849) (Bohlen 1978)
June 6, 1987, Lake Springfield, Sangamon County (David Bohlen)
(IORC 1987.084, HDB) (IBB 4:1:15) (IBB 5:1:5)
July 8, 1985, Lake Springfield, Sangamon County (David Bohlen)
(IBB 2:2:52) (Bohlen 1989)
July 30-31, 1985, Lake Springfield, Sangamon County (David Bohlen)
(IORC 1985.133, HDB, VMK) (IBB 2:2:52) (IBB 4:3:59) (Bohlen 1989)
August 10, 1994, Decatur, Macon County (Myrna Deaton)
(IORC 1994.035; MFD) (MJIB 4:2:74) (MJIB 7:2:56)
August 21 - September 6, 1989, Rice Lake, Fulton County (Kevin Richmond)
(IBB 6:2:44)

southern Illinois
October 4, 1986, Mississippi River at Alton, Madison County (Richard Anderson)
(IBB 3:2:40) (Bohlen 1989)
October 17-30, 1981, East Alton, Madison County (Bill Rudden, Phoebe Snetsinger)
(SR 31:11) (AB 36:184) (Bohlen 1989)
October 23, 2006, Dam East Boat Ramp, Clinton County (Leroy Harrison)
 (MJIB 16:2:71)
October 25 - December 7, 1989, West Access Beach, Clinton County (Bill Rudden)
(NN 61:10:82) (NN 62:1:5) (NN 62:2:10) (IBB 6:2:44)
     October 25, 1989, West Access Beach, Clinton County (1st cycle) (Bill Rudden, Albert Seppi - photos)
     October 28, 1989, West Access Beach, Clinton County (1st cycle) (George Barker, Terry Barker)
     October 29, 1989, West Access Beach, Clinton County (1st cycle) (WGNSS)
     November 4, 1989, West Access Beach, Clinton County (1st cycle) (WGNSS)
     November 21, 1989, West Access Beach, Clinton County (1st cycle) (Bill Rudden)
     December 7, 1989, West Access Beach, Clinton County (1st cycle) (Bill Rudden)
October 31, 1982, East Alton, Madison County (Ron Goetz, Phoebe Snetsinger)
(SR 35:11) (AB 37:187) (Bohlen 1989)
November 6-13, 1981, East Alton, Madison County (Bill Rudden, Randy Korotev)
(SR 31:11) (AB 36:184) (Bohlen 1989)
November 23-28, 2008, Carlyle Lake, Clinton County (Dan Kassebaum, Mark Seiffert)
(MJIB 18:2:68) (NAB 63:1:84)
     November 23, 2008, Carlyle Lake, Clinton County (1st cycle) (Dan Kassebaum, Mark Seiffert)
     November 28, 2008, Carlyle Lake, Clinton County (1st cycle) (Dan Kassebaum, Mark Seiffert)
December 1, 2007, Mississippi River at Alton, Madison County (Dave Rogles)
(IBET)
December 3, 2005, Dam East Boat Ramp, Clinton County (1st cycle) (Dan Kassebaum)
(MJIB 15:3:113) (NAB 60:2:233)
December 12, 2004, Dam West Access, Clinton County (2nd cycle) (Dan Kassebaum)
(IORC 2004.042; DMK) (MJIB 14:2:61) (MJIB 14:3:113) (NAB 59:2:267)
December 18, 1999, Horseshoe Lake, Madison County (Frank Holmes)
(IORC 1999.068; FH) (MJIB 10:2:55)
January 6, 1994, Madison County (Jack Van Benthuysen)
(MJIB 3:3:116)
January 9-23, 2000, Carlyle Lake, Clinton County (Dan Kassebaum)
(IORC 2000.004; DMK, FB) (NN 73:3:9) (MJIB 9:3:120) (MJIB 10:2:55)
     January 9, 2000, Dam East Boat Ramp, Clinton County (1st cycle) (Torrey Berger, Dan Kassebaum, Charlene Malone, Jim Malone, Albert Seppi)
     January 14, 2000, Lakeview, Clinton County (1st cycle) (Frank Bennett, Dan Kassebaum, Keith McMullen)
     January 15, 2000, Saddledam No. 2, Clinton County (1st cycle) (David Bohlen, Myrna Deaton, Beckie Dyer, Dan Kassebaum)
     January 16, 2000, Saddledam No. 2, Clinton County (1st cycle) (Dan Kassebaum)
     January 22, 2000, Saddledam No. 2, Clinton County (1st cycle) (Connie Alwood, Dan Kassebaum, Bob Kleiger, Kent Lannert)
     January 23, 2000, Saddledam No. 2, Clinton County (1st cycle) (Dan Kassebaum, Vicki Lang, Keith McMullen, Rhonda Monroe)
February 1, 1976, Rend Lake, Franklin County (Bruce Peterjohn, Mike Morrison)
(AB 30:3:726)
February 4-17, 2007, Mississippi River at Alton, Madison County (Bill Rowe)
(MJIB 16:3:114)
February 24, 1985, Rend Lake, Franklin County (Leroy Harrison, Gary Bowman, Denny Jones)
(IORC 1985.025; LH, GB, DWJ) (IBB 4:3:59)
     (IBB 1:3:68) (IBB 1:4:87) (AB 39:173) (Bohlen 1989) (Robinson 1996)
March 7, 1976, Mississippi River at Alton, Madison County (Tim Barksdale)
(NN 48:5:43) (AB 30:3:726)
March 25, 1925, Fayette County (specimen - ISM) (Edward Steinhauer)
April 5, 1975, Mississippi River at Alton, Madison County (Richard Anderson)
(AB 29:4:860) (WGNSS 1995)
May 18, 1986, Mississippi River at Alton, Madison County (Ron Goetz)
(IBB 2:4:94)

Unaccepted records:
July 24 - August 6, 1988, Rice Lake, Fulton County (IORC 1988.087; unaccepted) (IBB 6:1:13)
September 27-30, 1998, Clinton Lake, DeWitt County (IORC 1998.075; unaccepted) (MJIB 8:2:61)
October 11 - December 19, 1998, Horseshoe Lake, Madison County (IORC 1998.058; unaccepted) (MJIB 8:2:61)
November 10, 1996, Lake Shelbyville, Shelby County (IORC 1996.081; unaccepted) (MJIB 7:2:63)
December 12, 1998, Mallard Lake Landfill, Du Page County (IORC 1998.079; unaccepted) (MJIB 9:2:54)
December 23, 1984, Zion, Lake County (IORC 1984.007; unaccepted) (IBB 1:3:68) (IBB 4:3:62)
February 25, 1995, Clinton Lake, DeWitt County (IORC 1995.036; unaccepted) (MJIB 4:116) (MJIB 7:2:63) (AFN 49:154)

Slaty-backed Gull
- Larus schistisagus

northern Illinois
February 6, 1992, Mississippi River at Rock Island Arsenal, Rock Island County (Pete Peterson)
(MJIB 1:3:103-104) (MJIB 1:3:112) 
February 12-21, 1989, Mississippi River at Moline, Rock Island County (Ann Barker)
(IBB 5:3:70) (MJIB 1:3:103-104) (AB 43:2:322) 
     (Robbins and Easterla 1992) 

southern Illinois
December 16-18, 2007, Carlyle Lake, Clinton County (Dan Kassebaum)
(IORC 2007.057; DMK, JU) (MJIB 17:2:51) (MJIB 17:2:70) (MJIB 17:3:112)
     December 16, 2007, Carlyle Lake, Clinton County (Dan Kassebaum, Charlene, Malone, Jim Malone, Keith McMullen, Mark Seiffert, Mike Seiffert)
     December 17, 2007, Carlyle Lake, Clinton County (Tim Kuesel, Travis Mahan, Janice Sweet, Paul Sweet, Craig Taylor, WGNSS)
     December 18, 2007, Carlyle Lake, Clinton County (Dan Kassebaum, Joshua Uffman, Christmas Bird Count)
December 20, 1983 - February 5, 1984, Mississippi River at Alton, Madison County (Bill Rudden)
(IORC 1983.004; BR, RG, PS, LA, JBM, LH, JP, DU) 
     (SR 40:10) (IAB 209:26-30) (AB 38:3:323) (AB 40:2:207-216) (IBB 6:1:11) (MJIB 2:3:104) (Bohlen 1989) (Robbins and Easterla 1992) (WGNSS 1995, 1998)

Glaucous-winged Gull
- Larus glaucescens

northern Illinois
November 27 - December 12, 1992, O'Brien L&D, Cook County (Louise Augustine) (
IORC 1992.006; LA, JEL, LCB, WJM, AFS, RTC, DBJ, JBM)
     November 27, 1992, O'Brien L&D, Cook County (Louise Augustine, Pat Geis, Andy Sigler, Al Stokie) (MJIB 2:2:73) (MJIB 2:3:112) (AB 47:169)
     December 9, 1992, O'Brien L&D, Cook County (Dave Johnson - photos) (MJIB 4:2:47-50) (MJIB 7:2:56-57)
February 8-27, 2003, Starved Rock State Park, La Salle County
(MJIB 12:3:114)

central Illinois
June 29 - July 9, 2004, Lake Springfield, Sangamon County (David Bohlen)
(IORC 2004.031; HDB) (MJIB 14:2:51) (MJIB 14:2:61)
     June 29, 2004, Lake Springfield, Sangamon County (David Bohlen - photos)
     June 30, 2004, Lake Springfield, Sangamon County (David Bohlen)
     July 1, 2004, Lake Springfield, Sangamon County (David Bohlen)
     July 3, 2004, Lake Springfield, Sangamon County (David Bohlen)
     July 4, 2004, Lake Springfield, Sangamon County (David Bohlen, Beckie Dyer)
     July 5, 2004, Lake Springfield, Sangamon County (David Bohlen)
     July 9, 2004, Lake Springfield, Sangamon County (David Bohlen)
December 31, 1994, Lake Springfield, Sangamon County (David Bohlen)
(IORC 1994.050; HDB) (MJIB 4:3:108-109) (MJIB 4:3:116) (MJIB 7:2:57)

southern Illinois
September 8, 2007 - April 12, 2008, Carlyle Lake, Clinton County (Mark Seiffert)
(IORC 2007.034; MS, DMK, TAM, EWW) (MJIB 17:2:51) (MJIB 17:2:70)
     September 8, 2007, Dam West Access - Carlyle Lake, Clinton County (Dan Kassebaum, Travis Mahan, Mark Seiffert, m.ob.) (MJIB 17:3:112) (MJIB 17:4:150)
     September 9, 2007, Dam West Access - Carlyle Lake, Clinton County (Dan Kassebaum, Bill Rudden, Mark Seiffert, m.ob.)
     September 10, 2007, Point One - Carlyle Lake, Clinton County (Dan Kassebaum, Bob Shelby, m.ob.)
     September 11, 2007, Dam West Access - Carlyle Lake, Clinton County (Shawn Clubb, Jack Cowan)
     September 12, 2007, Dam West Access - Carlyle Lake, Clinton County (Bill Fritz)
     September 13, 2007, Dam West Access - Carlyle Lake, Clinton County (Bill Fritz)
     September 14, 2007, Dam West Access - Carlyle Lake, Clinton County (Keith McMullen)
     November 23, 2007, Dam West Access - Carlyle Lake, Clinton County (Dan Kassebaum, Mark Seiffert)
     November 24, 2007, Dam West Access - Carlyle Lake, Clinton County (Leroy Harrison, Dan Kassebaum, Travis Mahan, Mark Seiffert, Bob Shelby, WGNSS)
     November 25, 2007, Dam West Access - Carlyle Lake, Clinton County (Dan Kassebaum, Mark Seiffert, Eric Walters, WGNSS)
     November 26, 2007, Dam West Access - Carlyle Lake, Clinton County (Steve Griffaw)
     November 29, 2007, Dam West Access - Carlyle Lake, Clinton County (Mike Bowers, later Jackie Chain, WGNSS)
     December 1, 2007, Dam East Access - Carlyle Lake, Clinton County (Dan Kassebaum)
     December 8, 2007, Dam East Access - Carlyle Lake, Clinton County (Dan Kassebaum)
     December 9, 2007, Dam East Access - Carlyle Lake, Clinton County (Dan Kassebaum)
     December 15, 2007, Dam East Access - Carlyle Lake, Clinton County (Dan Kassebaum)
     December 16, 2007, Dam East Access - Carlyle Lake, Clinton County (Dan Kassebaum)
     December 17, 2007, Dam East Access - Carlyle Lake, Clinton County (WGNSS)
     December 18, 2007, Dam East Access - Carlyle Lake, Clinton County (Christmas Bird Count)
     December 22, 2007, Dam East Access - Carlyle Lake, Clinton County (Dan Kassebaum, Mark Seiffert, m.ob.)
     December 23, 2007, Dam West Access - Carlyle Lake, Clinton County (Dan Kassebaum, Keith McMullen, Mark Seiffert)
     December 25, 2007, Dam East Access - Carlyle Lake, Clinton County (Bill Rudden, Mark Seiffert)
     December 26, 2007, Dam West Access - Carlyle Lake, Clinton County (Jeff Chapman, Dan Kassebaum)
     December 29, 2007, Dam East Access - Carlyle Lake, Clinton County (Dan Kassebaum)
     December 30, 2007, West Access Marina - Carlyle Lake, Clinton County (Bruce Heimer)
     December 31, 2007, West Access Marina - Carlyle Lake, Clinton County (Dan Kassebaum)
     January 1, 2008, West Access Marina - Carlyle Lake, Clinton County (Dan Kassebaum, Mark Seiffert)
     January 2, 2008, West Access Marina - Carlyle Lake, Clinton County (Dan Kassebaum, Craig Litteken, Keith McMullen)
     January 12, 2008, West Access Marina - Carlyle Lake, Clinton County (Travis Mahan, IOS Fieldtrip)
     January 13, 2008, West Access Marina - Carlyle Lake, Clinton County (Dan Kassebaum, Mark Seiffert)
     January 19, 2008, West Access Marina - Carlyle Lake, Clinton County (Dan Kassebaum, Mark Seiffert)
     January 20, 2008, Dam West Access - Carlyle Lake, Clinton County (Dan Kassebaum, Charlene Malone, Jim Malone)
     January 21, 2008, Dam West Access - Carlyle Lake, Clinton County (Dan Kassebaum, Keith McMullen, Bill Rudden, Mark Seiffert)
     January 26, 2008, Dam West Access - Carlyle Lake, Clinton County (Dan Kassebaum)
     January 27, 2008, Dam West Access - Carlyle Lake, Clinton County (Dan Kassebaum)
     February 1, 2008, Dam West Access - Carlyle Lake, Clinton County (Dan Kassebaum)
     February 2, 2008, Dam West Access - Carlyle Lake, Clinton County (Dan Kassebaum, Charlene Malone, Jim Malone, Bill Rudden)
     February 3, 2008, Dam West Access - Carlyle Lake, Clinton County (Dan Kassebaum)
     February 9, 2008, West Access Marina - Carlyle Lake, Clinton County (Dan Kassebaum)
     February 10, 2008, West Access Marina - Carlyle Lake, Clinton County (Dan Kassebaum, Craig Taylor)
     February 12, 2008, West Access Marina - Carlyle Lake, Clinton County (Dan Kassebaum)
     February 18, 2008, West Access Marina - Carlyle Lake, Clinton County (Dan Kassebaum)
     February 22, 2008, West Access Marina - Carlyle Lake, Clinton County (Dan Kassebaum)
     February 23, 2008, West Access Marina - Carlyle Lake, Clinton County (Dan Kassebaum, m.ob.)
     February 24, 2008, West Access Marina - Carlyle Lake, Clinton County (Dan Kassebaum, m.ob.)
     February 25, 2008, West Access Marina - Carlyle Lake, Clinton County (Dan Kassebaum)
     March 29, 2008, Carlyle Sewage Pond, Clinton County (Dan Kassebaum, Mark Seiffert)
     April 5, 2008, West Access Marina, Clinton County (Dan Kassebaum, Mark Seiffert)
     April 6, 2008, Carlyle Sewage Pond, Clinton County (Dan Kassebaum, Joseph Prosise, Bill Rudden, Mark Seiffert)
     April 12, 2008, Carlyle Sewage Pond, Clinton County (Dan Kassebaum, Bill Rudden, Mark Seiffert)
December 6-20, 2008, Horseshoe Lake, Madison County (Bill Rudden, Frank Holmes) (MJIB 18:3:109) (NAB 63:2:260)
February 3-9, 1997, Mel Price L&D, Madison County, IL (Dan Kassebaum)
(IORC 1997.003; DMK, WCR, JZ, PS, KG) (MJIB 8:2:57)
     February 3, 1997, Mel Price L&D, Madison County, IL (initial sighting and tentative identification) (Dan Kassebaum) (FN 51:755) (WGNSS 1998)
     February 6, 1997, Riverlands, St. Charles County, MO (confirmed identification) (Jack Van Benthuysen, WGNSS Thursday group)
     February 7, 1997, Mel Price L&D, Madison County IL (documentary notes written - DMK) (Dan Kassebaum, Jack Van Benthuysen, Jim Ziebol)
     February 8, 1997, Mel Price L&D, Madison County IL (Bill Rowe - photos, m.ob.)
     February 9, 1997, Mel Price L&D, Madison County IL (Bill Rowe)
     Note: This gull lingered at the Riverlands EDA, St. Charles County, MO into March 1997. The range of dates in MJIB (8:2:57)
              includes mostly Missouri data. The early date of January 30 in Missouri is in retrospect to the February 6 verification.
              JVB was in communication with DMK and aware of the February 3 sighting in Illinois when he made his ID on February 6. 
              Illinois data prior to February 3 and beyond February 9, 1997 is lacking.

Records pending review:
February 19-20, 1993, Macon County (Myrna Deaton, Richard Palmer) (MJIB 2:3:112)
February 27-28, 1993, Peoria County (Louise Augustine) (MJIB 2:3:112)

Unaccepted records:
January 26 - February 1, 1997, Peoria L&D, Tazewell County (IORC 1997.005; unaccepted) (MJIB 8:2:61)
February 20, 1998, Lake Calumet, Cook County (IORC 1998.007; unaccepted) (MJIB 8:2:61)

Sooty Tern
- Onychoprion fuscatus

southern Illinois
July 12-13, 2005, Nashville, Washington County (specimen - ISM) (Martin Kemper)
(IORC 2005.028; HDB) (MJIB 15:2:48) (MJIB 15:2:59) (NAB 59:4:598)
July 16-25, 2005, Carlyle Lake, Clinton County (Dan Kassebaum)
(IORC 2005.025; DMK) (MJIB 14:2:61) (MJIB 15:1:26) (MJIB 15:2:49-50) (NAB 59:4:598)
     July 16, 2005, Carlyle Lake, Clinton County (Dan Kassebaum, Craig Taylor, Mike Kutska, Kay Kutska, Travis Mahan, Myrna Deaton, Kevin Richmond)
     July 16, 2005, Carlyle Lake, Clinton County (Leroy Harrison, Bob Shelby, Jim Malone, Charlene Malone, George Barker, Terry Barker, Frank Holmes)
     July 17, 2005, Carlyle Lake, Clinton County (David Bohlen, Al Stokie, Mike Madsen, Andy Sigler, Mary Anne Auer, Mike Brady)
     July 17, 2005, Carlyle Lake, Clinton County (Bob Fisher, Karen Fisher, Eric Secker, Jeff Chapman)
     July 18, 2005, Carlyle Lake, Clinton County (Keith McMullen, Joe Eades)
     July 19, 2005, Carlyle Lake, Clinton County (Dan Kassebaum, Albert Seppi)
     July 20, 2005, Carlyle Lake, Clinton County (Josh Uffman)
     July 22, 2005, Carlyle Lake, Clinton County (Dan Kassebaum, Jim Landing)
     July 23, 2005, Carlyle Lake, Clinton County (Dan Kassebaum, Travis Mahan, Joel Greenberg, Doug Stotz, Connie Alwood, David Becher)
     July 24, 2005, Carlyle Lake, Clinton County (Dan Kassebaum, Bill Rudden, Jeff Sanders, Joe Lill, Richard Messenger, Thad Edmonds)
     July 25, 2005, Carlyle Lake, Clinton County (Dan Kassebaum)
October 4, 2002, Ohio River at Joppa, Massac County (Frank Bennett)
(IORC 2002.024; FB) (MJIB 12:2:58) 
     (MJIB 12:2:74) (MJIB 12:3:88-89) (NAB 57:1:58)     

Large-billed Tern
- Phaetusa simplex

northern Illinois
July 15 - September 28, 1949, Lake Calumet, Cook County (photos - ISM) (Al Campbell)
(IORC 1949.001; CTC, RLZ) (MJIB 7:2:57-58)
     July 15, 1949, Lake Calumet, Cook County (Al Campbell)
     July 16, 1949, Lake Calumet, Cook County (Charles Clark)
     July 17, 1949, Lake Calumet, Cook County (Charles Clark, Ted Nork, Ellen Stephenson, Richard Zusi, Mr. and Mrs. Manette, W. Smith)
     (IAB 71:4-5) (IAB 144:14) (Smith and Parmalee 1955) (Ford 1956) (Smith 1972) (Bohlen 1978) (Mlodinow 1984) (Bohlen 1989) (Binford 1992) (MJIB 2:1:36)

Gull-billed Tern
- Geochelidon nilotica

northern Illinois
May 30, 1997, Waukegan Municipal Beach, Lake County (Eric Walters)
(IORC 1997.011; EW) (MJIB 6:4:122-123) (MJIB 6:4:150) (MJIB 7:2:57)
August 10-15, 1960, Gillson Park, Cook County (Bob Russell, Stan Hedeen)
(Russell, Hedeen and Easterberg 1962) (IAB 144:19) 
     August 10, 1960, Gillson Park, Cook County (Bob Russell, Stan Hedeen) (Mlodinow 1984) (Bohlen 1989) (MJIB 6:4:122-123)
     August 15, 1960, Gillson Park, Cook County (Bob Russell, Stan Hedeen)
August 13, 1967, Waukegan Beach, Lake County (Kim Eckert, Bob Russell)
(IAB 144:19) (AFN 21:5:578) (MJIB 6:4:122-123)
     (Bohlen 1978) (Mlodinow 1984) (Bohlen 1989)
August 15-26, 1959, Lake Calumet, Cook County (Harold Fetter, Helen Lane)
(AFN 14:40) (IAB 144:19) (MJIB 6:4:122-123)
     August 15, 1959, Lake Calumet, Cook County (Harold Fetter, Helen Lane) (Bohlen 1978) (Mlodinow 1984) (Bohlen 1989)
     August 26, 1959, Lake Calumet, Cook County (Harold Fetter, Helen Lane)

Historical comments:
Nelson (1876) "An exceedingly rare visitant during summer".

Arctic Tern
- Sterna paradisaea

northern Illinois
May 6, 1995, Braidwood Lake, Will County (Joe Milosevich)
(IORC 1995.017; JBM) (MJIB 4:4:129-134) (MJIB 4:4:140-141) (MJIB 4:4:152) (MJIB 7:2:57)
May 19 - July 31, 2001, Great Lakes NTC, Lake County (Bob Hughes)
(IORC 2001.020; RDH, HDB, CF, KH, DJ, SH) (MJIB 11:2:65)
     May 19, 2001, Great Lakes NTC, Lake County (Bob Hughes) (MJIB 11:1:12-16) (MJIB 11:2:74)
     June 14, 2001, Great Lakes NTC, Lake County (David Bohlen)
     June 23, 2001, Great Lakes NTC, Lake County (Carolyn Fields - photos)
     June 27, 2001, Great Lakes NTC, Lake County (Carolyn Fields - photos)
     June 29, 2001, Great Lakes NTC, Lake County (Dave Johnson - photos)
May 27, 1993, Brandon Road L&D, Will County (Joe Milosevich)
(IORC 1993.040; JBM, JEL, WS) (MJIB 2:4:140) (MJIB 2:4:150) (MJIB 7:2:57) (AB 47:468)
May 31 - June 2, 1997, Waukegan Municipal Beach, Lake County (David Bohlen)
(IORC 1997.012; HDB, DMK, MFD, RTC, DB) (MJIB 8:2:57)
     May 31, 1997, Waukegan Beach, Lake County (David Bohlen, Dan Kassebaum) (MJIB 6:4:138) (MJIB 6:4:150)
June 3, 2000, Great Lakes NTC, Lake County (Al Stokie, Dan Williams)
(IORC 2000.035; AS, DTW) (MJIB 10:2:55)
June 14-17, 1997, Waukegan Municipal Beach, Lake County (Scott Hickman)
(IORC 1997.013; SH, JO, DBJ) (MJIB 8:2:57)
     June 14, 1997, Waukegan Municipal Beach, Lake County (Scott Hickman, Dave Johnson) (MJIB 6:4:138) (MJIB 6:4:150)

central Illinois
June 28 - July 1, 1992, Lake Springfield, Sangamon County (David Bohlen)
(IORC 1992.013; HDB, VMK, TMP, JEL, DO, JBM) (MJIB 7:2:57)
     June 28, 1992, Lake Springfield, Sangamon County (David Bohlen) (MJIB 2:1:12) (MJIB 2:1:29) (AB 46:1194) (MJIB 2:4:140)
     June 29, 1992, Lake Springfield, Sangamon County (Dennis Oehmke - photos) 
     July 1, 1992, Lake Springfield, Sangamon County (David Bohlen, Joe Milosevich - photos, Dan Kassebaum, Albert Seppi - photos)

southern Illinois
September 8-9, 2007, Carlyle Lake, Clinton County (Mike Thelen)
(IORC 2007.056; MT) (MJIB 17:2:51) (MJIB 17:2:70)
     September 8, 2007, Carlyle Lake, Clinton County (retrospective ID) (Frank Holmes)
     September 9, 2007, Carlyle Lake, Clinton County (Mike Thelen)

Unaccepted records:
October 3, 1986, Springfield, Sangamon County (David Bohlen) (IORC 1986.178; unaccepted) (IBB 5:1:8)
     (IBB 3:2:41) (Bohlen 1989) (MJIB 2:1:12) (MJIB 2:4:140)

Royal Tern
- Thalasseus maximus

northern Illinois
June 18, 1993, Chicago, Cook County (John O'Brien, David Mandell)
(MJIB 3:1:32)
July 9-10, 2009, La Salle Lake, La Salle County (Andy Sigler)
(NAB 63:4:598)
     July 9, 2009, La Salle Lake, La Salle County (Andy Sigler, Alan Stokie, Mike Madsen, m.ob)
     July 10, 2009, La Salle Lake, La Salle County (m.ob)
July 13, 1988, Montrose Harbor Beach, Cook County (Bob Hughes)
(IORC 1988.064; RDH, WH) (IBB 5:1:16) (IBB 6:1:11) (AB 42:1224) (Bohlen 1989)
August 4-5, 1990, Lincoln Park, Cook County (Jim Landing, Sebastian Patti)
(IBB 7:2:51)
August 23, 1967, Wolf Lake, Cook County (Jeff Sanders)
(AFN 22:1:49) (AFN 22:5:613)
September 7, 1985, Lake Calumet, Cook County (Bob Hughes, Andy Sigler, Jim Landing)
(IORC 1985.141; JEL) (IBB 4:3:60)
     (IBB 2:2:52) (AB 40:121) (Bohlen 1989)

southern Illinois
September 5, 1962, Crab Orchard NWR, Williamson County (Bob Rice, Russell Rose, INHS)
(Bohlen 1978) (Bohlen 1989) (Robinson 1996)

Historical comments:
Nelson (1876) "An exceedingly rare summer visitant to Lake Michigan".

Unaccepted records:
June 9, 1999, 64th Street Beach, Chicago, Cook County (IORC 1999.065; unaccepted) (MJIB 10:2:57)

Sandwich Tern
- Thalasseus sandvicensis

northern Illinois
April 26, 1989, Waukegan Municipal Beach, Lake County (Laurie Binford)
(IORC 1989.024; LCB) (IBB 5:4:87) (MJIB 2:1:13-14) (MJIB 7:2:57)

Black Skimmer
- Rynchops niger

central Illinois
July 23, 2004, Lake Springfield, Sangamon County (David Bohlen)
(IORC 2004.018; HDB, TAM) (MJIB 14:1:30) (MJIB 14:2:50) (MJIB 14:2:61)
September 4, 1998, Lake Decatur, Macon County (Myrna Deaton)
(IORC 1998.054; MFD, VMK, DO) (MJIB 8:2:42-43) (MJIB 8:2:57) (MJIB 8:2:73)

southern Illinois
September 25, 2004, Mississippi River at Alton, Madison County (Frank Holmes)
(IORC 2004.035; FH) (MJIB 14:2:50) (MJIB 14:2:61) (MJIB 14:2:72)

Pomarine Jaeger
- Stercorarius pomarinus - see also unidentified jaeger sp.

northern Illinois
September 14, 1930, Waukegan, Lake County
(Smith 1972)
September 17, 1978, Wilmette, Cook County (Larry Balch, Rich Biss)
(IAB 188:47) (AB 33:2:183) (Mlodinow 1984) (Bohlen 1989)
October 5, 1967, Chicago, Cook County (Bedford Brown, Ira Sanders)
(IAB 145:15) (AFN 22:1:49) (AFN 22:5:613)
October 6, 1983, Chicago, Cook County (Jim Landing)
(SR 39:16) (IAB 208:38) (AB 38:2:209) (Mlodinow 1984) (Bohlen 1989)
October 9, 1876, Chicago, Cook County (Edward Nelson)
(BEI 8:9-12:145)
     (Woodruff 1907) (Ford, Sanborn and Coursen 1934) (Ford 1956)(Smith 1958, 1972) (Bohlen 1978) (Bohlen 1989)
October 10, 1966, 900 North, Cook County (Bedford Brown)
(IAB 140:13-14) (AFN 21:1:45) (AFN 22:5:613)
October 14, 1974, Evanston, Cook County (Jerry Rosenband, Bob Russell)
(IAB 172:29) (AB 29:1:66) (Bohlen 1978) (Mlodinow 1984) (Bohlen 1989)
     Illinois Audubon Bulletin (172:89) does not list a specific date. Mlodinow (1984) dates this record October 12, 1974.
October 16, 1921, Lincoln Park, Cook County (Colin Sanborn)
(Bird-Lore 24:45-46) 
     (Ford, Sanborn and Coursen 1934) (Ford 1956) (Smith 1958, 1972) (Bohlen 1978) (Bohlen 1989)
October 16, 1978, Northwestern University, Cook County (Greg Neise)
(IORC 1978.007; GN) (MJIB 13:2:56)
October 31, 1999, Evanston, Cook County (Eric Walters)
(MJIB 9:2:73) (NAB 54:1:59)
November 8, 2003, Winthrop Harbor, Lake County
(MJIB 13:2:71)
November 21, 1997, Gillson Park, Cook County (Bob Hughes)
(IORC 1997.044; RDH) (MJIB 7:2:73) (MJIB 8:2:57) (FN 52:1:68)
circa 1875-76, Evanston, Cook County (F. L. Rice)
(BNOC July 1876) (BEI 8:9-12:145) (Woodruff 1907) (Bohlen 1978)

central Illinois
September 7-12, 1983, Lake Springfield, Sangamon County (David Bohlen)
(SR 39:16) (IAB 208:38) (AB 38:2:209) (Bohlen 1989)
September 8, 1995, Lake Springfield, Sangamon County (David Bohlen)
(IORC 1995.058; unaccepted) 
     (MJIB 5:2:73) (FN 50:1:62) (FN 50:5:957) (MJIB 7:2:63)
October 6-15, 1988, Lake Springfield, Sangamon County (David Bohlen)
(IORC 1988.100; DO) (IBB 6:1:11)
     October 8, 1988, Lake Springfield, Sangamon County (Steve Bailey) (IBB 5:2:47)
October 7, 1987, Powerton Lake, Tazewell County
(IORC 1987.113; species unresolved) (IBB 5:1:7) (AB 42:1:82)
October 10-16, 1988, Lake Decatur, Macon County (Richard Palmer, Myrna Deaton)
(IORC 1988.079; MFD, RDP, RTC, JBM) (IBB 6:1:11)
     (IBB 5:2:47) (AB 43:1:111)
October 23-31, 2005, Clinton Lake, DeWitt County (Eric Walters)
(IORC 2005.044; EWW, REF, DFS) (MJIB 15:2:71) (MJIB 16:2:59) (NAB 60:1:73)
October 31 - November 7, 1999, Clinton Lake, DeWitt County (Bob Chapel)
(IORC 1999.050; RTC) (MJIB 9:2:53) (MJIB 9:2:79) (NAB 54:1:59)
November 3-4, 1985, Pekin, Tazewell County (Kevin Richmond, Mike Baum)
(IORC 1985.118; species unresolved) (IBB 2:2:51) (IBB 4:3:61) (AB 40:1:120)
November 8-26, 1996, Lake Springfield, Sangamon County (David Bohlen)
(IORC 1996.079; HDB, DO) (MJIB 7:2:56)
     November 8-14, 1996, Lake Springfield, Sangamon County (David Bohlen) (NN 69:1:3) (MJIB 6:2:74-75) (MJIB 7:2:56) (FN 51:1:64)
     November 9, 1996, Lake Springfield, Sangamon County (Dan Kassebaum)
     November 15-22, 1996, Lake Springfield, Sangamon County (2) (David Bohlen)
     November 23-25, 1996, Lake Springfield, Sangamon County (David Bohlen)
     November 26, 1996, Lake Springfield, Sangamon County (3) (David Bohlen)
December 1, 1996, Clinton Lake, DeWitt County (Bob Chapel)
(IORC 1996.078; unaccepted) (MJIB 6:2:74) (MJIB 7:2:63)

southern Illinois
July 9-12, 1981, Mississippi River at Alton, Madison County
(Yvonne Balsiger, Ruth Hummel, Mickey Scudder) (NN 53:7:49-50) 
     (SR 31:11) (AB 35:6:945) (Bohlen 1989) (WGNSS 1995)
August 2004, Carlyle Lake, Clinton County
(unpublished/undocumented)
August 31, 1962, Illinois River at Kampsville, Calhoun County (William Starrett)
(Bohlen 1978) (Bohlen 1989)
September 25, 1996, Mississippi River at Alton, Madison County (Jack Van Benthuysen)
(IORC 1996.076; unaccepted) (MJIB 7:2:63)
     (NN 68:5:4) (MJIB 6:2:74) (WGNSS 1998)
October 6-8, 1988, Carlyle Lake, Clinton County (Ron Goetz)
(NN 61:1:4) (IBB 5:2:47)
     October 6, 1988, Carlyle Lake, Clinton County (Ron Goetz, Bill Rudden, Denny Jones)
     October 7, 1988, Carlyle Lake, Clinton County (probable Pomarine) (Leroy Harrison)
     October 8, 1988, Carlyle Lake, Clinton County (2) (WGNSS)
October 30, 2004, Crab Orchard NWR, Williamson County (Trevor Hinckley)
November 5-26, 1996, Carlyle Lake, Clinton County (David Bohlen)
(IORC 1996.077; HDB, DM, DMK) (MJIB 7:2:56)
     November 5, 1996, Carlyle Lake, Clinton County (David Bohlen) (NN 69:1:3) (MJIB 6:2:74) (FN 51:1:64)
     November 10, 1996, Carlyle Lake, Clinton County (2) (George Barker, Terry Barker, David Becher)
     November 11, 1996, Carlyle Lake, Clinton County (2) (Dan Kassebaum)
     November 12, 1996, Carlyle Lake, Clinton County (2) (Dan Kassebaum, Jack Van Benthuysen)
     November 14, 1996, Carlyle Lake, Clinton County (2) (Dan Kassebaum, Albert Seppi)
     November 16, 1996, Carlyle Lake, Clinton County (2) (David Bohlen, Dan Kassebaum, Dan Miller, Kevin Richmond, WGNSS)
     November 17, 1996, Carlyle Lake, Clinton County (2) (Dan Kassebaum)
     November 18, 1996, Carlyle Lake, Clinton County (2) (Dan Kassebaum)
     November 20, 1996, Carlyle Lake, Clinton County (Dan Kassebaum)
     November 22, 1996, Carlyle Lake, Clinton County (Dan Kassebaum)
     November 25, 1996, Carlyle Lake, Clinton County (2) (WGNSS)
     November 26, 1996, Carlyle Lake, Clinton County (Dan Kassebaum)
November 7-9, 1979, Mississippi River at Alton, Madison County (Bill Rudden)
(NN 52:1:3) (SR 23:7) (AB 34:2:168) (Bohlen 1989)
November 9-11, 1979, Olney, Richland County (Leroy Harrison)
(SR 23:7) (AB 34:2:168) (Bohlen 1989)
November 9-27, 1991, Carlyle Lake, Clinton County (Dan Kassebaum)
(NN 64:1:4) (MJIB 1:2:20-21) (MJIB 1:2:31)
     November 9, 1991, Carlyle Lake, Clinton County (Dan Kassebaum, Todd Fink, Judy DeNeal)
     November 10, 1991, Carlyle Lake, Clinton County (Dan Kassebaum, WGNSS)
     November 16, 1991, Carlyle Lake, Clinton County (2) (Dan Kassebaum, Bill Rudden)
     November 21, 1991, Carlyle Lake, Clinton County (Dan Kassebaum)
     November 26, 1991, Carlyle Lake, Clinton County (2) (Dan Kassebaum)
     November 27, 1991, Carlyle Lake, Clinton County (2) (Dan Kassebaum, Todd Fink)
November 10-20, 1985, Carlyle Lake, Clinton County (Leroy Harrison)
(NN 58:1:89-90) (IBB 2:2:51) (AB 40:1:120) (Bohlen 1989)
     November 10, 1985, Carlyle Lake, Clinton County (2) (Leroy Harrison)
     November 12, 1985, Carlyle Lake, Clinton County (jaeger sp.) (WGNSS)
     November 15, 1985, Carlyle Lake, Clinton County (2) (David Bohlen)
     November 16, 1985, Carlyle Lake, Clinton County (2) (Skip Russell, WGNSS)
     November 17, 1985, Carlyle Lake, Clinton County (2) (Todd Fink, WGNSS)
     November 20, 1985, Carlyle Lake, Clinton County (Leroy Harrison)
November 18 - December 2, 1982, Carlyle Lake, Clinton County (Bill Rudden)
 (NN 55:1:5) (NN 55:2:13) (SR 35:10) (SR 36:7) (AB 37:2:187) (Bohlen 1989)
     November 18, 1982, Carlyle Lake, Clinton County (Bill Rudden)
     November 19, 1982, Carlyle Lake, Clinton County (Ron Goetz, Skip Russell)
     November 26, 1982, Carlyle Lake, Clinton County (Bill Rudden)
     November 27, 1982, Carlyle Lake, Clinton County (WGNSS)
     November 30, 1982, Carlyle Lake, Clinton County (Dave Jones)
     December 2, 1982, Carlyle Lake, Clinton County (WGNSS Thursday group)
November 20 - December 15, 1996, Mississippi River at Alton, Madison County (Kent Lannert)
(NN 69:1:13) (NN 69:2:5) (WGNSS 1998)
     November 21, 1996, Mississippi River at Alton, Madison County (WGNSS Thursday group) (MJIB 6:2:74) (MJIB 6:3:115) (FN 51:1:64) (FN 51:3:755)
     November 23, 1996, Mississippi River at Alton, Madison County (Jim Malone, Charlene Malone, Paul Bauer, David Becher) 
     November 25, 1996, Mississippi River at Alton, Madison County (two) (WGNSS)
     November 27, 1996, Mississippi River at Alton, Madison County (Jim Malone, Charlene Malone, David Becher)
     December 13, 1996, Mississippi River at Alton, Madison County (Dan Kassebaum)
November 26 - December 8, 1991, Rend Lake, Franklin County (Todd Fink, Bob Danley, Judy DeNeal)
(MJIB 1:2:31) (AB  46:2:272) (Robinson 1996)
December 8-15, 2007, Horseshoe Lake State Park, Madison County (Bill Rudden)
(IORC 2007.064; FH) (MJIB 17:3:112) (MJIB 18:3:83)
December 18, 1982, Crab Orchard NWR, Williamson County (Mike Mlodinow)
(SR 36:7) (Bohlen 1989) (Robinson 1996)
January 29 - February 5, 2000, Rend Lake, Franklin County (Dan Kassebaum)
(IORC 2000.013; DMK, FB) (MJIB 9:3:120) (MJIB 10:2:54)
     January 29, 2000, Rend Lake, Franklin County (Frank Bennett, Dan Kassebaum, Keith McMullen) 
     February 5, 2000, Rend Lake, Franklin County (Frank Bennett)
February 27, 1991, Mississippi River at Alton, Madison County (Bruce Wetteroth, Jim Ziebol)
(NN 63:4:42) (AB 45:2:280) (WGNSS 1995)
March 20, 1996, Carlyle Lake, Clinton County (Jack Van Benthuysen)
(IORC 1996.020; unaccepted)
      (NN 68:5:4) (MJIB 7:2:63) (FN 50:3:288) (WGNSS 1998)

Parasitic Jaeger
- Stercorarius parasiticus - see also unidentified jaeger sp.

northern Illinois - Lake County and Cook County
May 5, 1966, Lincoln Park, Cook County (Catherine Schaffer, Bedford Brown)
(IAB 138:7) (IAB 139:22)
fall 1948-1954, southern end of Lake Michigan, Cook County
(Smith and Parmalee 1955)
fall 1975, Chicago, Cook County (8 - season total) (Larry Balch)
(IAB 176:33) (AB 30:1:79) (Bohlen 1978)
fall 2000, Illinois Beach SP, Lake County (Al Stokie, Bob Erickson)
(MJIB 10:2:73)
August 30, 1991, Wilmette, Cook County (Jerry Rosenband)
(MJIB 1:2:31)
September 1, 1989, Wilmette, Cook County (Al Stokie)
(IBB 6:2:44) (AB 44:1:99)
September 2, 2000, Jackson Park, Cook County (2) (Michal Skakuj)
(MJIB 10:2:73)
September 3, 1993, Wilmette, Cook County (Jerry Rosenband)
(MJIB 3:2:72)
September 7, 1973, Chicago, Cook County (Jerry Rosenband)
(AB 28:1:61) (Bohlen 1978)
September 7, 1992, Chicago, Cook County (John O'Brien)
(MJIB 2:2:73)
September 9, 1972, Chicago, Cook County (Bob Russell)
(AB 27:1:68) (Bohlen 1989)
September 14, 2007, Cook County
(MJIB 17:2:70)
September 16, 1978, Evanston, Cook County (Dave Johnson)
(IAB 188:47) (AB 33:2:183)
September 17, 1978, Evanston, Cook County (2) (Rich Biss)
(IAB 188:47) (AB 33:2:183) (Bohlen 1989)
September 19-20, 1987, Chicago, Cook County (Jim Landing, Catherine Monday)
(IORC 1987.095; JEL, AS) (IBB 5:1:5)
     (IBB 3:4:99) (IBB 4:2:43) (AB 42:1:82)
September 24, 2000, Wilmette, Cook County (Dave Johnson)
(MJIB 10:2:73)
September 25-30, 2003, Montrose, Cook County (specimen - FMNH 439059) (Bob Hughes)
(IORC 2003.031, RDH, TAM) 
     (MJIB 13:2:71) (MJIB 14:2:61) (NAB 58:1:75)
October 1, 1977, Evanston, Cook County (2) (Larry Balch)
(IAB 184:47) (AB 32:2:212)
October 2, 1982, Illinois Beach SP, Lake County (Dave Johnson, Jim Neal)
(IORC 1982.013; unaccepted) (SR 35:10) (MJIB 13:2:57) (AB 37:2:187)
October 5, 1967, Chicago, Cook County (Bedford Brown, Ira Sanders)
(IAB 145:15) (AFN 22:1:49) (AFN 22:5:613)
October 8, 1990, Wilmette, Cook County (Bob Hughes)
(IBB 7:2:50)
October 8, 1997, Winnetka, Cook County (Jerry Rosenband)
(MJIB 7:2:73) (FN 52:1:68)
October 12 - November 3, 1974, Chicago, Cook County (8 - season total) (Larry Balch)
(IAB 172:29) (AB 29:1:66)
     October 14, 1974, Evanston, Cook County (5) (Larry Balch) (Bohlen 1978) (Mlodinow 1984) (Bohlen 1989)
October 14, 1978, Evanston, Cook County (Dave Johnson)
(IAB 188:47) (AB 33:2:183)
October 15, 1972, Evanston, Cook County (2) (Larry Balch, Charles Clark, Jerry Rosenband, Bob Russell, Jeff Sanders)
(IAB 164:41) 
     (AB 27:1:68) (Bohlen 1978) (Binford 1992) (MJIB 2:1:38)
October 16, 1989, Waukegan, Lake County (Dave Johnson, Jim Solum)
(IBB 6:2:44) (AB 44:1:99)
October 17, 1971, Gillson Park, Cook County (Larry Balch, Bill Tweit, Betty Shaw)
(IAB 161:35-36) (IAB 162:20) (AB 26:1:72) (Bohlen 1978)
October 17, 1997, Wilmette, Cook County (Josh Engel)
(MJIB 7:2:73) (FN 52:1:68)
October 18, 1972, Evanston, Cook County (Jeff Sanders, Jerry Rosenband, Larry Balch, Bob Russell)
(IAB 164:41)
October 19 - November, 1949, Chicago, Cook County (7 max)
(AFN 4:1:17-19) (Ford 1956)
October 20, 1985, Wilmette, Cook County (Rich Biss, Mary Biss, Jim Landing)
(IORC 1985.121; RB) (IBB 2:2:51) (IBB 4:3:59) (AB 40:1:120)
October 20, 1985, Wilmette, Cook County (3) (Jim Landing, Catherine Monday)
(IORC 1985.186; species unresolved) 
     (IBB 2:2:51) (IBB 4:3:61) (AB 40:1:120)
October 21, 1996, Evanston, Cook County (Josh Engel)
(MJIB 6:2:74) (FN 51:1:64)
October 22, 1972, Evanston, Cook County (Jeff Sanders, Jerry Rosenband, Larry Balch)
(IAB 164:41)
October 24, 1948, Wilmette, Cook County (Al Campbell)
(Ford 1956)
October 25, 1976, Evanston, Cook County (Jerry Rosenband)
(IAB 180:44) (AB 31:2:184)
October 25, 1986, Wilmette, Cook County (9) (Jim Landing)
(IBB 3:2:40) (AB 41:1:96) (Bohlen 1989)
October 26, 1997, Wilmette, Cook County (Igal Milchtaich, Josh Engel)
(MJIB 7:2:73) (FN 52:1:68)
October 27, 1976, Lake Calumet, Cook County (specimen) (Larry Balch)
(IAB 180:44) (AB 31:2:184) (Mlodinow 1984) (Bohlen 1989)
     Mlodinow (1984) dates this record October 27, 1972.
October 28, 1991, Illinois Beach SP, Lake County (Jim Solum)
(MJIB 1:2:31)
October 28, 2007, Lake County
(MJIB 17:2:70)
October 29, 1926, Chicago, Cook County (3/2 specimens) (specimen - FMNH 97330) (Charles Eifrig)
(Auk 4:431-432) 
     (Ford, Sanborn and Coursen 1934) (Smith and Parmalee 1955) (Ford 1956) (Bohlen 1978) (Bohlen 1989)
October 29, 1988, Winnetka, Cook County (Jack Pomatto)
(IBB 5:2:47)
October 30, 1985, Wilmette, Cook County (Rich Biss)
(IORC 1985.187; RB) (IBB 2:2:51) (IBB 4:3:59) (AB 40:1:120)
October 30, 1999, Chicago, Cook County (Geoff Williamson)
(MJIB 9:2:73) (NAB 54:1:59)
October 31, 1970, Wilmette, Cook County (Kim Eckert, Bob Russell)
(AB 25:1:65) (Bohlen 1978)
October 31, 1971, Gillson Park, Cook County (probable) (Larry Balch)
(IAB 161:35-36) (IAB 162:20) (AB 26:1:72)
     (Larry Balch, Joel Greenberg, Jeff Sanders, Jerry Rosenband, Vern Kleen, Bill Shepherd)
October 31, 1991, Illinois Beach SP, Lake County (4) (Danny Diaz, Dave Johnson, Jim Solum)
(MJIB 1:2:31) (AB 46:1:98)
October 31, 1991, Wilmette, Cook County (2) (Eric Walters)
(MJIB 1:2:31)
November 1, 1991, Wilmette, Cook County (Toby Brown, Eric Walters)
(MJIB 1:2:31-32)
November 2, 1946, Waukegan, Lake County (2/perhaps more) (F. C. Whitehead)
(Ford 1956)
November 2, 1997, Wilmette, Cook County (Josh Engel)
(MJIB 7:2:73) (FN 52:1:68)
November 5, 1922, Chicago, Cook County (specimen) (Charles Eifrig)
(Ford, Sanborn and Coursen 1934) (Ford 1956) (Bohlen 1989)
November 5, 1990, Wilmette, Cook County (Eric Walters)
(IBB 7:2:50)
November 6, 1999, Wilmette, Cook County
(MJIB 9:2:79)
November 6, 1999, Chicago, Cook County (Alan Stokie)
(MJIB 9:2:73) (NAB 54:1:59)
November 6, 1999, Evanston, Cook County (2) (Michael Retter)
(MJIB 9:2:73) (NAB 54:1:59)
November 7, 1999, Evanston, Cook County (Bob Chapel)
(MJIB 9:2:73) (NAB 54:1:59)
November 10, 1993, Wilmette, Cook County (Eric Walters)
(MJIB 3:2:72)
November 11, 1988, Winnetka, Cook County (Jack Pomatto)
(IBB 5:2:47)
November 11, 1993, Wilmette, Cook County (Jeff Sanders)
(MJIB 3:2:72)
November 15, 1980, Chicago, Cook County (Rich DeCoster)
(IORC 1980.009; unaccepted) (SR 27:8) (MJIB 13:2:57)
November 16, 1991, Wilmette, Cook County (Bob Hughes)
(MJIB 1:2:31)
November 20, 1996, Montrose, Cook County (Bob Hughes)
(IORC 1996.075; unaccepted) (MJIB 6:2:74) (MJIB 7:2:63) (FN 51:1:64)
November 22, 1979, Evanston, Cook County (Rich Biss)
(SR 23:7) (AB 34:2:168)
November 23, 1977, Evanston, Cook County (Jerry Rosenband)
(IAB 184:47) (AB 32:2:212)
November 23, 1997, Waukegan, Lake County (Jerry Rosenband, Michael Hogg)
(MJIB 7:2:73) (FN 52:1:68)
November 24, 1996, Wilmette, Cook County (Bob Hughes, Al Stokie)
(MJIB 6:2:74) (FN 51:1:64)
November 30, 1985, Wilmette, Cook County (2) (Ron Goetz, Phoebe Snetsinger)
(IORC 1985.122; species unresolved) 
     (IBB 2:2:51) (IBB 4:3:61) (AB 40:1:120)
December 23, 1973, Montrose and North Beach Avenue, Cook County (Jeff Sanders, Darlene Friedman)
(AB 28:2:379) 
     (Mlodinow 1984) (Bohlen 1989)
December 25, 2005, Chicago, Cook County (Steve Huggins, fide Steve Bailey)
(MJIB 15:3:112)

northern Illinois - excluding Lake County and Cook County
September 17, 1995, La Salle, La Salle County (Cindy McKee, John McKee)
(IORC 1995.059; CKM, JDM) (MJIB 5:2:73-74) (MJIB 7:2:56) (FN 50:1:62)
September 19-25, 2006, Heidecke Lake, Grundy County (Scott Cohrs)
(IORC 2006.011; SAC) (MJIB 16:2:59) (MJIB 16:2:71)
     September 19, 2006, Heidecke Lake, Grundy County (Scott Cohrs)
     September 23, 2006, Heidecke Lake, Grundy County (Scott Cohrs)
     September 24, 2006, Heidecke Lake, Grundy County (Rick Fox, Tracy Fox)
     September 25, 2006, Heidecke Lake, Grundy County (Carole Schoeck)
September 27, 1986, Mississippi Palisades SP, Carroll County (Pete Peterson)
(IORC 1986.173; species unresolved) (IBB 3:2:40) (IBB 5:1:7) (AB 41:1:96)
November 22, 1973, East Moline, Rock Island County (Elton Fawks)
(IORC 1973.004; unaccepted) (IAB 168:28) (IAB 169:11-12) (MJIB 12:2:60)
December 6-11, 1963, Rapid City, Rock Island County (Elton Fawks)
(IAB 131:21)
     December 6, 1963, Rapid City, Rock Island County (Elton Fawks)
     December 7, 1963, Rapid City, Rock Island County (fide Elton Fawks)
     December 8, 1963, Rapid City, Rock Island County (fide Elton Fawks)
     December 11, 1963, Rapid City, Rock Island County (fide Elton Fawks)

central Illinois
June 22-23 1998, Lake Springfield, Sangamon County (David Bohlen)
(IORC 1998.049; HDB) (MJIB 8:1:32) (MJIB 8:2:57) (FN 52:4:462)
September 10 - October 4, 2001, Chautauqua NWR, Mason County (Dennis Oehmke)
(IORC 2001.081: DO)
     (MJIB 10:2:73) (MJIB 10:3:96) (MJIB 10:4:142) (MJIB 11:2:65) (NAB 55:1:59)
September 12, 1970, Chautauqua NWR, Mason County (David Bohlen)
(IAB 159:15) (AB 25:1:65) (Bohlen 1978)
September 22, 1984, Clinton Lake, DeWitt County (Bob Chapel)
(IBB 1:2:20) (AB 39:1:61) (Bohlen 1989)
October 6, 1896, Mississippi River at Hancock County (specimen) (W. E. Praeger)
(Auk 12:85-86) (Bohlen 1989)
October 19-27, 1985, Chautauqua NWR, Mason County (Louise Augustine, Tom Pucelik, Kevin Richmond)
(IBB 2:2:51) (AB 40:1:120)
     (IORC 1985.120; species unresolved) (IBB 5:1:7)
November 1, 1991, Lake Decatur, Macon County (Myrna Deaton)
(MJIB 1:2:31) (AB 46:1:98)
November 28, 1970, Chautauqua NWR, Mason County (David Bohlen)
(IAB 159:15) (AB 25:3:586) (Bohlen 1978)

southern Illinois
September 7, 2008, Carlyle Lake, Clinton County (Keith McMullen)
(MJIB 18:2:68) (NAB 63:1:84)
September 8-12, 2007, Carlyle Lake, Clinton County (Dan Kassebaum, Travis Mahan)
(IORC 2007.031; DMK, TAM) (MJIB 17:2:51) (MJIB 17:2:70)
     September 8, 2007, Carlyle Lake, Clinton County (2 juveniles) (Joe Eades, Dan Kassebaum, Travis Mahan, Keith McMullen, Mark Seiffert)
     September 9, 2007, Carlyle Lake, Clinton County (juvenile) (Louise Augustine, Dan Kassebaum, Kevin Richmond, Bill Rudden, Mike Thelen)
     September 10, 2007, Carlyle Lake, Clinton County (2 juveniles) ( Dan Kassebaum, Bob Shelby, m.ob.)
     September 12, 2007, Carlyle Lake, Clinton County (juvenile) (Steve Freed)
September 18-26, 2004, Carlyle Lake, Clinton County (Dan Kassebaum, Travis Mahan, Michael Retter, Kevin Richmond)
(IORC 2004.030; DMK, CLW) 
     September 18, 2004, Carlyle Lake, Clinton County (Dan Kassebaum, Travis Mahan, Michael Retter, Kevin Richmond) (MJIB 14:2:61) (MJIB 14:2:71) 
     September 19, 2004, Carlyle Lake, Clinton County (Dan Kassebaum, Kevin Richmond, Bill Rowe, Bill Rudden) (NAB 59:1:75)
     September 20, 2004, Carlyle Lake, Clinton County (Joe Eades, Charlene Malone, Roger Hayes, Keith McMullen)
     September 22, 2004, Carlyle Lake, Clinton County (Kevin Richmond)
     September 25, 2004, Carlyle Lake, Clinton County (IOS Fieldtrip, Leroy Harrison, Kevin Richmond, Chris Wood - photos)
     September 26, 2004, Carlyle Lake, Clinton County (Joe Eades, Dan Kassebaum)
September 23-27, 1998, Carlyle Lake, Clinton County (Dan Kassebaum)
(NN 70:9:10) (MJIB 8:2:73) (NAB 53:1:60)
     September 23, 1998, Carlyle Lake, Clinton County (Dan Kassebaum)
     September 24, 1998, Carlyle Lake, Clinton County (Dan Kassebaum) 
     September 26, 1998, Carlyle Lake, Clinton County (IOS Fieldtrip)
     September 27, 1998, Carlyle Lake, Clinton County (Dan Kassebaum)
September 29-30, 1988, East Fork Lake, Richland County (Leroy Harrison)
(IORC 1988.080; LH) (IBB 5:2:47) (IBB 6:1:11)
October 5-6, 1988, Carlyle Lake, Clinton County (Leroy Harrison)
(IORC 1988.081; RG) (IBB 6:1:11)
     October 5, 1988, Carlyle Lake, Clinton County (probable Parasitic) (Leroy Harrison) (NN 61:1:4) (IBB 5:2:47) (WGNSS 1995)
     October 6, 1988, Carlyle Lake, Clinton County (Ron Goetz, Bill Rudden, Denny Jones)
November 2, 1991, Mississippi River at Alton, Madison County (David Becher)
(NN 64:1:3) (MJIB 1:2:31) (AB 46:1:98) (WGNSS 1995)
November 2-8, 2008, Carlyle Lake, Clinton County (Dan Kassebaum, Mark Seiffert, Eric Walters)
(MJIB 18:2:68) (NAB 63:1:84)
     November 2, 2008, Carlyle Lake, Clinton County (Dan Kassebaum, Mark Seiffert, Eric Walters)
     November 8, 2008, Carlyle Lake, Clinton County (jaeger sp.) (Dan Kassebaum)
November 4, 2006, Crab Orchard NWR, Williamson County (Trevor Hinckley)
November 5-6, 2000, Carlyle Lake, Clinton County (Keith McMullen)
(MJIB 10:2:73) (NAB 55:1:59)
     November 5, 2000, White-tail Access, Clinton County (Keith McMullen, Frank Bennett, Dan Kassebaum)
     November 5, 2000, Lakeview Access, Clinton County (Keith McMullen, Frank Bennett, Dan Kassebaum)
     November 6, 2000, Carlyle Lake, Clinton County (Connie Alwood, Tom Bormann)
November 10-17, 1985, Carlyle Lake, Clinton County (Leroy Harrison)
(IORC 1985.171; species unresolved) 
     (NN 58:1:89-90) (IBB 2:2:51) (IBB 4:3:61) (AB 40:1:120) (WGNSS 1995)
     November 10, 1985, Carlyle Lake, Clinton County (Leroy Harrison)
     November 11, 1985, Carlyle Lake, Clinton County (Bill Rudden)
     November 12, 1985, Carlyle Lake, Clinton County (jaeger sp.) (WGNSS)
     November 15, 1985, Carlyle Lake, Clinton County (David Bohlen)
     November 16, 1985, Carlyle Lake, Clinton County (WGNSS, Skip Russell)
     November 17, 1985, Carlyle Lake, Clinton County (Todd Fink, WGNSS)
November 11, 2000, Illinois River at Jersey County
(IORC 2000.051; unaccepted) (MJIB 10:2:57)

Long-tailed Jaeger
- Stercorarius longicaudus - see also unidentified jaeger sp.

central Illinois
September 4, 1976, Chautauqua NWR, Mason County (David Bohlen, James Frank)
(IAB 180:44) (AB 31:2:184)
September 10-24, 2000, Chautauqua NWR, Mason County (Clark Olson)
(IORC 2000.064; DO, DBJ) 
     (MJIB 10:2:54) (MJIB 10:2:73) (MJIB 10:3:84-92) (NAB 55:1:59)

southern Illinois
September 3-21, 2001, Carlyle Lake, Clinton County (Keith McMullen)
(IORC 2001.034; DMK) (MJIB 11:2:65) (MJIB 11:2:74) (NAB 56:1:58)
     September 3, 2001, Carlyle Lake, Clinton County (Keith McMullen)
     September 21, 2001, Carlyle Lake, Clinton County (Dan Kassebaum)
September 5, 1998, Carlyle Lake, Clinton County (Dr. Fernando Segade)
(NN 70:9:10) (MJIB 10:3:82-84)
September 6-25, 2004, Carlyle Lake, Clinton County (Joe Eades)
 (IORC 2004.031; JE, DMK, TAM) (MJIB 14:2:61) (MJIB 14:2:71) (NAB 59:1:75)
     September 6, 2004, Carlyle Lake, Clinton County (2) (Joe Eades, Dan Kassebaum, Keith McMullen, Dave Rogles) 
     September 7, 2004, Carlyle Lake, Clinton County (2) (Dan Kassebaum, Josh Uffman)
     September 8, 2004, Carlyle Lake, Clinton County (2) (Joe Eades, Dan Kassebaum, Keith McMullen)
     September 9, 2004, Carlyle Lake, Clinton County (2) (Kevin Richmond)
     September 10, 2004, Carlyle Lake, Clinton County (Bob Fisher, Karen Fisher, Eric Secker)
     September 11, 2004, Carlyle Lake, Clinton County (2) (IOS Fieldtrip, Travis Mahan - photos, Jim Malone - photos, Albert Seppi - photos)
     September 12, 2004, Carlyle Lake, Clinton County (2) (Dan Kassebaum, Kevin Richmond)
     September 16, 2004, Carlyle Lake, Clinton County (2) (Joe Eades)
     September 18, 2004, Carlyle Lake, Clinton County (2) (Dan Kassebaum, Travis Mahan, Michael Retter, Kevin Richmond)
     September 19, 2004, Carlyle Lake, Clinton County (2) (Dan Kassebaum, Kevin Richmond, Bill Rudden)
     September 20, 2004, Carlyle Lake, Clinton County (2) (Joe Eades, Roger Hayes, Charlene Malone, Keith McMullen)
     September 21, 2004, Carlyle Lake, Clinton County (Doug Stotz)
     September 22, 2004, Carlyle Lake, Clinton County (Kevin Richmond)
     September 23, 2004, Carlyle Lake, Clinton County (Sandy Elbert - photos, Jean Leonatti)
     September 25, 2004, Carlyle Lake, Clinton County (2) (Dan Kassebaum, Travis Mahan)
September 7, 2002, Carlyle Lake, Clinton County (Dan Kassebaum)
(IORC 2002.021; DMK) (MJIB 12:2:57-58) (MJIB 12:2:74) (NAB 57:1:58)
September 16, 2000, Carlyle Lake, Clinton County (Charlene Malone, Jim Malone)
(NN 72:9:4)
September 18 - October 2, 1999, Carlyle Lake, Clinton County (Charlene Malone, Jim Malone)
(MJIB 10:2:54-55) (MJIB 10:3:82-84)
     September 18, 1999, Carlyle Lake, Clinton County (Charlene Malone, Jim Malone) (NN 71:9:5) (MJIB 9:2:73) (MJIB 9:2:79) (NAB 54:1:59)
     September 19, 1999, Carlyle Lake, Clinton County (Myrna Deaton, Leroy Harrison, Dan Kassebaum, Keith McMullen, Albert Seppi - photos)
     September 20, 1999, Carlyle Lake, Clinton County (Jim Ziebol)
     September 22, 1999, Carlyle Lake, Clinton County (Dan Kassebaum) (IORC 1999.044; RM, CW, CF, RH, KL, JZ, RTC, MR, WS, JM, FB)
     September 23, 1999, Carlyle Lake, Clinton County (L. Augustine, G. Barker, T. Barker, M. Deaton, F. Holmes, K. Lannert, T. Pucelik, J. Ziebol)
     September 24, 1999, Carlyle Lake, Clinton County (David Becher, Frank Bennett - video, Dan Kassebaum, Bob Kleiger)
     September 25, 1999, Carlyle Lake, Clinton County (Keith McMullen, IOS Fieldtrip - photos)
     September 26, 1999, Carlyle Lake, Clinton County (Bill Rowe)
     October 2, 1999, Carlyle Lake, Clinton County (Dan Kassebaum, Keith McMullen, SLAS Fieldtrip - photos)
October 6-8, 2007, Carlyle Lake, Clinton County (Dan Kassebaum)
(IORC 2007.026; DMK) (MJIB 17:2:51) (MJIB 17:2:70)
     October 6, 2007, Carlyle Lake, Clinton County (Dan Kassebaum, IOS Fieldtrip)
     October 7, 2007, Carlyle Lake, Clinton County (Dan Kassebaum, Mark Seiffert, WGNSS)
     October 8, 2007, Carlyle Lake, Clinton County (Dan Kassebaum, Mark Seiffert)
October 21, 1893, Nashville, Washington County (specimen - SIU A-161)
(Bohlen 1978) (IBB 7:3:68-70) (Robinson 1996)
November 1876, Mississippi River at Cairo, Alexander County (specimen) (William Ballou)
(Ridgway 1889) (Smith and Parmalee 1955)
     (IAB 144:13) (George 1968) (Bohlen 1978) (Bohlen 1989) (Robinson 1996)

Stercorarius sp - unidentified jaeger

unidentified - Lake County and Cook County
August 29, 1993, Illinois Beach SP, Lake County (Bob Erickson)
(MJIB 3:2:72)
August 30, 1998, Wilmette, Cook County (Josh Engel)
(MJIB 8:2:73) (NAB 53:1:60)
September 4, 2000, Jackson Park, Cook County (Michal Skakuj)
(MJIB 10:2:73)
September 4, 2000, Wilmette, Cook County (Bob Hughes, Eric Walters)
(MJIB 10:2:73)
September 5, 2000, Illinois Beach SP, Lake County (Steve Bailey)
(MJIB 10:2:73)
September 8, 1996, Montrose, Cook County (Bob Hughes)
(MJIB 6:2:74) (FN 51:1:64)
September 13, 1987, Chicago, Cook County (Jim Landing)
(IBB 4:2:43)
September 14, 1930, Waukegan, Lake County (specimen) (James Stephenson, Pierce Brodkorb)
(Auk 50:371-373) 
     (Smith and Parmalee 1955) (Bohlen 1978)
September 14, 1996, Evanston, Cook County (Bob Chapel)
(MJIB 6:2:74) (FN 51:1:64)
September 14, 2000, Great Lakes NTC, Lake County (Carolyn Fields)
(MJIB 10:2:73)
September 19, 1985, Illinois Beach SP, Lake County (Sebastian Patti)
(IBB 2:2:51) (AB 40:1:120)
September 24 - Oct 4, 1986, along Lake Michigan (8 fall reports) (Rich Biss)
(IBB 3:2:40) (AB 41:1:96)
September 30, Northerly Island, Cook County (Doug Stotz)
(MJIB 18:2:68)
October 1, 1977, Evanston, Cook County (3) (Larry Balch)
(IAB 184:47) (AB 32:2:212)
October 4, 1991, Waukegan, Lake County (Danny Diaz)
(MJIB 1:2:31)
October 5-6, 1967, Chicago, Cook County (several) (Bedford Brown, Jeff Sanders)
(IAB 145:15) (AFN 22:1:49)
October 7, 1966, Chicago, Cook County
(AFN 21:1:45)
October 8, 2003, Montrose, Lake County (Chet Gresham)
(MJIB 13:2:71)
October 9, 1983, Jackson Park, Cook County (Frank Johnson)
(SR 39:16) (AB 38:2:209)
October 9, 1993, Wilmette, Cook County (4) (Jim Landing, Catherine Monday)
(MJIB 3:2:72)
October 12 - November 3, 1974, Chicago, Cook County (4 unidentified for the season)
(Larry Balch) (IAB 172:29) (AB 29:1:66)
October 14, 1997, Jackson Park, Cook County (David Mandell)
(MJIB 7:2:73) (FN 52:1:68)
October 15, 1966, Navy Pier, Cook County (7) (Bedford Brown)
(IAB 140:14) (AFN 21:1:45)
October 16, 1966, Adler Planetarium, Cook County (3) (Ira Sanders, Bedford Brown)
(IAB 140:14) (AFN 21:1:45)
October 16, 1997, Highland Park, Lake County (Dave Johnson)
(MJIB 7:2:73) (FN 52:1:68)
October 25, 1997, Jackson Park, Cook County (David Mandell, Paul Clyne)
(MJIB 7:2:73) (FN 52:1:68)
October 25, 1997, Wilmette, Cook County (Bob Hughes)
(MJIB 7:2:73) (FN 52:1:68)
October 26, 1980, Chicago, Cook County (Rich DeCoster)
(SR 27:8)
October 28, 2000, Wilmette, Cook County (Bob Hughes)
(MJIB 10:2:73)
October 30, 1982, Chicago, Cook County (Jim Landing)
(SR 35:10)
October 30 - November 4, 1973, Chicago, Cook County (7) (Larry Balch, Jerry Rosenband)
(AB 28:1:61) (AB 28:4:810)
November 2, 1991, Wilmette, Cook County (Jeff Sanders)
(MJIB 1:2:31)
November 2, 1997, Wilmette, Cook County (Joel Greenberg)
(MJIB 7:2:73) (FN 52:1:68)
November 3, 1990, Wilmette, Cook County (Jeff Sanders)
(IBB 7:2:50)
November 4, 2006, Montrose Harbor, Cook County (Bob Hughes)
(MJIB 16:2:71)
November 6, 1991, Kenilworth, Cook County (Bob Hughes)
(MJIB 1:2:31)
November 10, 1997, Wilmette, Cook County (Keith McMullen)
(MJIB 7:2:73) (FN 52:1:68)
November 12, 1984, Wilmette, Cook County (Alan Anderson)
(IBB 1:2:20) (AB 39:1:61)
November 22, 1992, Chicago, Cook County (John O'Brien)
(MJIB 2:2:73)
November 22, 2007, Jackson Park, Cook County (Paul Doughty)
(MJIB 17:2:70)
November 24, 1996, Montrose, Cook County (2) (Geoff Williamson, Christine Williamson, John Purcell)
(MJIB 6:2:74) (FN 51:1:64)
December 16, 1965, Wilmette, Cook County (Jeff Sanders)
(IAB 137:3)
April 8, 1983, Montrose, Cook County (Rich DeCoster) (SR 37:17)
(AB 38:2:209)
May 8, 1966, Belmont Harbor, Cook County (Bedford Brown)
(IAB 139:22)

unidentified - northern
September 20, 2007, Heidecke Lake, Grundy County (Scott Cohrs)
(IBET)
September 29, 1996, Greene Valley FP, Du Page County (fide Jim Frazier)
(MJIB 6:2:74) (FN 51:1:64)
April 6, 1969, Rock Island, Rock Island County (Mrs. Warren Wickstrom)
(IAB 151:15)

unidentified - central
September 8, 2001, Homer Lake, Champaign County (Bob Chapel)
(MJIB 11:2:74)
November 1, 1984, Big River SF, Henderson County (Mike Baum)
(IBB 1:2:20) (AB 39:1:61)
November 21, 1994, Chautauqua NWR, Mason County (Kevin Richmond)
(MJIB 4:2:73) (FN 49:1:54)
November 21-22, 2000, Mississippi River at Hancock County (Justin Rink, James Fuller)
(NAB 55:1:59)
November 27, 1982, Charleston, Coles County (Ron Bradley)
(SR 35:10)

unidentified - southern
August 29, 1987, Crab Orchard NWR, Williamson County (Doug Robinson)
(IBB 4:3:43) (AB 42:1:82) (Robinson 1996)
September 10, 2004, Carlyle Lake, Clinton County (Bob Fisher, Karen Fisher, Eric Secker)
(IORC 2004.045; unaccepted) (MJIB 14:2:71) (MJIB 15:2:60)
September 29, 1994, Carlyle Lake, Clinton County (Dan Kassebaum)
(NN 66:9:4) (MJIB 4:2:73) (FN 49:1:54) (WGNSS 1998)
     MJIB (4:2:73) dates this record September 30, 1994.
November 2, 1982, Mark Twain NWR, Calhoun County (Bill Rudden)
(NN 55:1:4) (SR 35:10) (AB 37:2:187)
November 2, 1982, East Alton, Madison County (found dead) (Bill Rudden) (
NN 55:1:4) (SR 35:10) (AB 37:2:187)

Dovekie
- Alle alle

northern Illinois
November 26, 1992, La Salle Lake, La Salle County (Cindy McKee, John McKee)
(IORC 1992.023; CM, JDM) (MJIB 7:2:58)
     (MJIB 2:2:51-52) (MJIB 2:2:74)

Ancient Murrelet
- Synthliboramphus antiquus

northern Illinois
November 16-21, 1982, Wilmette and Evanston, Cook County (Jerry Rosenband)
(IORC 1982.004; GR, JEL, DBJ) (IBB 6:1:11)
     November 16, 1982, Gillson Park, Cook County (Jerry Rosenband) (SR 35:11) (IAB 200:42-44) (IAB 204:54) (Mlodinow 1984) (Bohlen 1989)
     November 20, 1982, Northwestern University, Cook County (Andy Sigler)
     November 21, 1982, Northwestern University, Cook County

central Illinois
November 16, 1962, Macomb, McDonough County (specimen - ISM 603842) (Terry Balding)
(IORC 1962.001; TB) (IBB 6:1:11)
     (Auk 81:443) (Bohlen 1978) (Bohlen 1989) (MJIB 15:2:60)

southern Illinois
November 6, 2004, Carlyle Lake, Clinton County (Dan Kassebaum)
(IORC 2004.020; DMK, TAM) (MJIB 14:2:61) (MJIB 14:2:72)
     (Connie Alwood, Tom Bormann, Richard Coles, Myrna Deaton, Joe Eades, Sandy Elbert, Randy Korotev)
     (Jean Leonatti, Travis Mahan, Charlene Malone, Jim Malone, David Rogles, Albert Seppi, Josh Uffman)