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ARBORETUM CHRISTMAS BIRD COUNT Below you'll find some examples of the complilation of party miles and party hours. In this example, we have
Since "official daylight birding time" is one half hour before sunrise to one half hour after sunset, in this example we have
All other times are recorded as "owling hours." Birding Group
#1:
Four persons began birding together at 6:40 a.m. and continued until 5:10 p.m. They walked seven miles in six hours and drove 78 miles in four hours; they took a half hour lunch break. Results: 10 birding hours (6 on foot, 4 by car); 85 party miles (7 on foot, 78 by car); in 1 party. Birding Group
#2:
Three persons began birding together at 7:00 a.m. and continued until 3:00 p.m. They walked three miles in five hours and drove 62 miles in three hours. They did not take a lunch break, but birded while eating lunch. Results: 8 birding hours (5 on foot, 3 by car); 65 party miles (3 on foot, 62 by car); in 1 party. Birding Group #3: One person birded from 6:40 a.m. until 5:10 p.m. He walked 12 miles in 10 hours and drove five miles in one half hour. No lunch break. Results: 10 1/2 birding hours (10 on foot, 1/2 by car); 17 party miles (12 on foot, 5 by car); in 1 party. Birding Group #4: Two persons began birding at 8:00 a.m. and were joined by a third (who had not birded in the morning) at 1:30 p.m. All three continued together until 4:30 p.m. (However, the first two took a 1 1/2 hour lunch break.) They walked three miles in four hours and drove 73 miles in three hours. Results: 7 birding hours (4 on foot, 3 by car); 76 party miles (3 on foot, 73 by car); in 1 party. Birding Group #5: Four persons began birding at 8:00 a.m. and were together until 9:30 a.m., then split up into two groups ot two each until 11:00 a.m. when they rejoined. All continued together until 5:00 p.m. when they stopped birding. As a group of four they walked five miles in 5 1/2 hours and drove 24 miels in two hours; while split up, the first two walked an additional 1 1/2 miels in 1 1/2 hours and the second two walked two miles in 1 1/2 hourse; there was no driving while the groups were separated. Results: 10 1/2 birding hours (8 1/2 on foot, 2 by car); 32 1/2 party miles (8 1/2 on foot, 24 by car); in 1 to 2 parties. Birding Group #6: This example includes owling hours. Two persons began birding at 3:40 a.m. (three hours before official daylight time) listening for owls, etc. They continued birding all day together and finally stopped at 7:10 p.m. (two hours after official daylight time). These two persons walked 12 miles in 9 1/2 "daylight" hours and drove 36 miles in one "daylight" hour; they also spent three early morning hours and two evening hours listening for owls. Results: 10 1/2 birding hours (9 1/2 on foot, 1 by car); 48 party miles (12 on foot, 36 by car). 5 owling hours; in 1 party. Birding Group #7: This example combines owling hours and split party hours. Three persons began birding at 1:40 a.m. and continued until 10:10 p.m. At 7:40 a.m. they split into three separate parties then rejoined just after noon. They then split into three parties again at 1:40 p.m.; two joined up at 3:10 p.m. and the third rejoined the two at 4:40 p.m. They remained together the rest of the time. As a group of three they walked two miles in 1 1/2 hours (6:40 - 7:40 a.m. and 4:40 to 5:10 p.m.) and drove five miles in 1 1/2 hours (12:10 p.m. to 1:40 p.m.). The group of two walked two miles in 1 1/2 hours (3:10 to 4:40 p.m.) As individuals, the first person walked seven miles in six hours (7:40 a.m. to 12:10 p.m. and 1:40 to 3:10 p.m.); the second walked eight miles in six hours (the same hours as the first); and the third walked 10 miles in 7 1/2 hours (7:40 a.m. to 12:10 p.m. and 1:40 to 4:40 p.m.). All driving was done while the three persons were together. Results: 24 birding hours (22 1/2 on foot, 1 1/2 by car); 34 party miles (29 on foot, 5 by car); plus an additional 10 owling hours; in 1 to 3 parties. Totals: Combining everything together gives us the following.
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modified on 9 November 2015 |