Monday, October 15, 2012

 October 12 [Day 22] (Joel Duncan) The temperature was -1C at 0815, rose to a high of 12.5C at 1500 and was 10C at 1915. Ground winds were initially light SW, but after 1100 increased to 20 gusting 50 km/h for the rest of the day, while ridge winds were strong W-SW all day. Initial cloud cover was 80% altocumulus, altostratus and cirrus that gradually reduced to 20% altocumulus at 1500 before slowly increasing to 40% altocumulus and cirrus at 1900. Observing conditions were good in the afternoon, although the height of the birds often made aging impossible. A total of 26 migrant raptors were seen between 0839 and 1849, with birds travelling the normal route from Mount Lorette to the Fisher Range until the wind velocity increased, after which the birds appeared behind the northern end of the Fisher Range and  kited very high before gliding to the SE well above the ridge. Peak movement was 8 birds between 1700 and 1800, but for most of the day movement was light and sporadic. The flight comprised 1 adult Bald Eagle, 1 dark morph Rough-legged Hawk, 1 unidentified Buteo, 26 Golden eagles (6a,1sa,9j,11u) and 1 undifferentiated eagle. Other birds recorded included 1 Common Loon flying high to the south, 1 Varied Thrush singing early in the morning, 1 American Robin, 1 Yellow-rumped Warbler, 1 Song Sparrow, a high-flying flock of 60 Grey-crowned Rosy-Finches and 20 White-winged Crossbills.
11 hours (243.76) BAEA 1 (40), RLHA 1 (15), UB 1 (2), GOEA 26 (1214), UE 1 (2) TOTAL 30 (1390)

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