Thursday, November 11, 2010

November 8 [Day 48] (George Halmazna) The passage of a cold front brought snow overnight and the temperature only reached 3C at 1400 from a low of -2C. Ground winds were variable and light, never exceeding 5 km/h but ridge winds were moderate SSW to WSW in the morning becoming strong and gusting to over 100 km/h in the afternoon. Cloud cover was 100% stratus in the morning obscuring the ridges that didn’t fully clear until 1600, but by 1700 the cloud had reduced to 30% cumulus. Despite the conditions there was a fairly strong raptor movement with a total of 54 birds tallied between 1057 and 1555 with a peak movement of 19 birds (3 Bald Eagles and 16 Golden Eagles) between 1300 and 1400. The flight comprised 9 adult Bald Eagles, 1 juvenile Cooper’s Hawk (the first recorded since October 29), 1 adult Northern Goshawk and 43 Golden Eagles (40a, 2sa, 1j). The front also triggered a good movement of waterfowl with 23 Tundra Swans, 3 Trumpeter Swans, 500 Canada Geese (in 11 flocks) and 60 Mallard going south, while 2 American Tree Sparrows, 1 Snow Bunting and 9 Grey-crowned Rosy Finches were also recorded. 10.5 hours (514.72) BAEA 9 (140), COHA 1 (13), NOGO 1 (31), GOEA 43 (3153) TOTAL 54 (3541)

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