Wednesday, October 19, 2011

October 18 [Day 27] (Alan Hingston, assisted by Joel Duncan and Terry Waters) The temperature at 0800 was -4C and fell to -5C at 0900 before quickly warming to a well above average high of 15C between 1500 and 1700, and it was 5C at 1900. Ground winds were light and variable SW-NE in the morning and SW in the afternoon, generally light but gusting to 10-15 km/h around 1500, and ridge winds were moderate SSW-SW all day. The sky was clear to 1900 after which thin cirrostratus developed that reached 80% at 1200, varied between 20 and 50% in the afternoon and had almost disappeared by the end of the day. The first Golden Eagle was seen at 0815 but morning movement was slow and only 5 birds had been recorded by noon. The rate increased in the afternoon and peaked at 19 birds (18 Golden Eagles) between 1600 and 1700, with nearly all the birds migrating along the Fisher Range. The flight of 79 raptors was again dominated by 74 Golden Eagles (37a,10sa,9j,18u) along with 1 subadult Bald Eagle, 1 unaged Sharp-shinned Hawk, 1 adult Cooper's Hawk and 2 adult light morph calurus Red-tailed Hawks. Other birds were sparse, but a single Song Sparrow is still lingering near the site.

11.75 hours (314.65) BAEA 1 (49), SSHA 1 (74), COHA 1 (28), RTHA 2 (21), GOEA 74 (2477) TOTAL 79 (2727)


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