The Piitaistakis (South Livingstone Ridge)and Mt. Lorette Raptor Counts for the spring migration of 2010 are underway. Follow the daily movement of raptors in these field notes by Research Director Peter Sherrington and his citizen scientist colleagues.

Tuesday, March 30, 2010

March 30 [Day 42] (Valley View site) Yesterday’s bad weather persisted with 10 cm of fresh snow falling until 0900, and the rest of the day saw periods of light snow or flurries. The temperature rose to 2.5C from a low of -3C and periodically fell to zero or below as snow squalls swept down from the Continental Divide. Ground winds were mainly W-SW gusting to 15 km/h except during squalls when the wind reached 35 km/h, and ridge winds were moderate W all day. Cloud cover was 80-100% stratocumulus and cumulus diminishing to 70% at 1900. There was a thin movement of 8 Golden Eagles between 0950 and 1254, then nothing was seen until the day’s only Bald Eagle at 1814, after which another 8 raptors were recorded (1 adult calurus Red-tailed Hawk, 1 Rough-legged Hawk and 6 Golden Eagles) with the last going north at 1932. The 14 Golden Eagles comprised 11 adults and 3 subadults. 12.67 hours (484.9) BAEA 1 (311), RTHA 1 (18, RLHA 1 (26), GOEA 14 (1793) TOTAL 17 (2236)

Mount Lorette [Day 30] (Alan Hingston) Heavy snow persisted until 1030 when 20 cm lay on the ground. It was -5C at 0800 and was still -3C at noon, ground winds were light SW, ridge winds were moderate NW-W all day, and cloud cover was 100% stratocumulus and stratus for most of the day. After 1030 the Fisher Range remained clear, although snow showers or flurries persisted. Alan watched at the Lusk Creek site until 1100 but saw nothing, and returned to the Hay Meadow site after the snow had stopped. The first migrant raptors were 2 Golden Eagles at 1236 and movement was then slow and sporadic with 4 of the day’s 14 migrants moving between 1400 and 1500 and the last bird, a Northern Goshawk, was recorded at 1738. The flight comprised 2 Bald Eagles (1a,1j), 1 unaged Northern Goshawk and 11 Golden Eagles (8a,3u) 11 hours (336.8) BAEA 2 (62), NOGO 1 (16), GOEA 11 (1028) TOTAL 14 (1134)

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