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.

Sunday, February 21, 2010

February 21 [Day 6] (Valley View site) The temperature ranged from -13C (the lowest so far this season) to 6C (the highest) at 1400, falling back to -2C at 1800. Ground winds were variable and light until 1400 when they became steady SW gusting to 18km/k, backing to NW after 1700. It was cloudless until 1500 after which up to 20% cirrus cloud developed so it was difficult to gauge the higher winds which were probably moderate W at ridge level between 1400 and 1700, while the high upper flow remained moderate N. The calm conditions meant that the first migrant Bald Eagle did not appear until 1252, but subsequent movement was fairly steady for the time of year as moderate westerly winds developed, with the last of the day’s 10 Bald Eagles moving north at 1724. At 1637 3 Bald Eagles, including the day’s only juvenile bird, soared over the Piitaistakis Ridge before gliding north together. The only other migrants were 2 Rough-legged Hawks at 1517 and 1628 equaling last year for the earliest record for a migrant bird at the site. No migrant Golden Eagles were seen but a resident adult and a resident juvenile were present, with the adult perching on the ridge for over an hour and only occasionally displaying. 11 hours (64.34) BAEA 10 (13), RLHA 2 (2) TOTAL 12 (20)

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