Saturday, April 2, 2011

April 1 April 1 [Day 28] (George Halmazna) The temperature rose to a high of 3C between 1100 and 1500 from a low of -3C, and was 2C at the end of the day. Ground winds were calm to mainly light SW occasionally gusting to 15 km/h, and ridge winds were moderate SW-SSW to 1000 after which they were light or calm to 1500 before becoming moderate again. Cloud cover was 100% stratus, stratocumulus and altostratus all day, but the ridges remained clear until 1100 when snow squalls sweeping down from the west periodically obscured first the west and then the east. At 1600 steady snow developed and all ridges were obscured for the rest of the day. Despite the conditions there was a reasonable raptor movement with 33 of the day's 41 migrants occurring between 1500 and 1558 when the last of the day's 30 adult Golden Eagles moved NW. The day's earliest bird was the first of a season-high count of 5 adult calurus Red-tailed Hawks, of which 4 were light morphs and 1 was a dark morph. The other migrants seen were 4 Bald Eagles (3a, 1j) and 2 Rough-legged Hawks. All the birds appeared over or from behind the northern end of the Fisher Range before crossing the valley to Mount Lorette. Non-raptor highlights were 2 Trumpeter Swans flying low to the north over the river in a snow squall at 1400, the season's first American Wigeon, a male, with 3 Mallard on the river, 23 American Robins, and a Song Sparrow which was one of several birds singing today producing a brief illusion that spring had arrived. 11 hours (316.42) BAEA 4 (128), RTHA 5 (7), RLHA 2 (11), GOEA 30 (2584) TOTAL 41 (2765)

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