IORC Record 2025-004

Form: Mountain Bluebird
County: Cook
Location: Chicago's Humboldt Park, Winnemac Park, Loyola Park, and Montrose Point in Lincoln Park
Date(s): 20-24 April 2025
Number of birds: one
Remarks: Found and photographed by Christopher Holden at Humboldt Park on the morning of 20 April, but gone from there by midafternoon. Refound the next morning (21 April) at Winnemac Park by Peter Tolzmann, but it stayed there only briefly. Then refound in the afternoon at Loyola Park by Scott Judd, where it stayed until midday on 23 April. Finally, seen by Yonatan Simkovich at Montrose Point in Lincoln Park in the morning of 24 April, after which the bird was not seen.

Documentation submitted:

1. Documentation #1 by Geoffrey A. Williamson

Externally archived documentation:

1. eBird checklist S227493619 of Christopher Holden
   • Macaulay Library asset ML634111156 (photograph)
   • Macaulay Library asset ML634111160 (photograph)
   • Macaulay Library asset ML634111171 (photograph)
2. eBird checklist S227810577 of Peter Tolzmann
3. eBird checklist S227953303 of Scott Judd
   • Macaulay Library asset ML634185228 (photograph)
   • Macaulay Library asset ML634185229 (photograph)
4. eBird checklist S228878302 of Yonatan Simkovich
   • Macaulay Library asset ML634347333 (photograph)
   • Macaulay Library asset ML634347334 (photograph)
   • Macaulay Library asset ML634347335 (photograph)
   • Macaulay Library asset ML634347336 (photograph)

Photographs submitted: four by Geoffrey A. Williamson

Photo #1 by Geoffrey A. Williamson on 21 April 2025 at Loyola Park (reduced size image; full resolution version is available in the IORC archives)

Photo #2 by Geoffrey A. Williamson on 21 April 2025 at Loyola Park (reduced size image; full resolution version is available in the IORC archives)

Photo #3 by Geoffrey A. Williamson on 21 April 2025 at Loyola Park (reduced size image; full resolution version is available in the IORC archives)

Photo #4 by Geoffrey A. Williamson on 21 April 2025 at Loyola Park (reduced size image; full resolution version is available in the IORC archives)

This page was last updated on 27 April 2025.