Thursday, March 17, 2011

March 17 [Day 13] (George Halmazna) There was little temperature variation with a high of 3C at 1500 and it was -1C at both 0715 and at 1930. Ground winds were mainly W gusting to 30 km/h while ridge winds were moderate WSW-SW gusting to 54 km/h. Cloud cover was 70-90% cumulus and altostratus all day with snow flurries developing after 1400: the eastern ridges remained clear but the west was 60-90% obscured after 1600. A total of 76 raptors migrated between the first Golden Eagle at 1126 and the last Bald Eagle at 1635, with the best hourly counts being 12-1300 when 22 Golden Eagles passed and 13-1400 with 19 Golden and 2 Bald Eagles recorded. The flight comprised 3 Bald Eagles (1a, 2sa), 1 adult Northern Goshawk and 72 Golden Eagles (69a, 1sa, 2j). Thirty-two Grey-crowned Rosy-Finches and 11 White-winged Crossbills were both seasonal firsts for the site and a single Black-capped Chickadee was, surprisingly, only the second record for the season. 12.25 hours (138.83) BAEA 3 (24), NOGO 1 (2), GOEA 72 (324) TOTAL 76 (355)

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