Wednesday, October 5, 2011

October 4 [Day 15] (George Halmazna, assisted by Michael Woertman) The temperature rose to a high of 17C at 1600 from a low of 2C, and was 8.5C at 1900. Ground winds were often calm or light, mainly SW (occasionally S or SE), gusting to 40 km/h around 1400, and ridge winds were strong SSW-SW all day gusting to 120 km/h in the morning and 166 km/h in the afternoon. Cloud cover was 100% altostratus and cumulus to 1300 after which it reduced to 50% but increased again to 90% by the end of the day. Movement started relatively early when the first of a season-high total of 189 Golden Eagles was recorded, and persisted to 1744 when the last of the Golden Eagles went south. The highest hourly count was 44 Golden Eagles between 1100 and 1200. The combined species total of 201 birds was also the highest this season and comprised 2 adult Bald Eagles, 7 Sharp-shinned Hawks (5a,2u), 1 adult Northern Goshawk, 1 adult light morph calurus Red-tailed Hawk, 189 Golden Eagles (162a, 5sa,22j) and 1 unaged Peregrine Falcon. A Northern Shrike was the only other bird of note.

12 hours (175.9) BAEA 2 (16), SSHA 7 (41), NOGO 1 (7), RTHA 1 (6) GOEA 189 (384), PEFA 1 (6) TOTAL 201 (478)

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