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, February 23, 2010

February 23 [Day 8] (Valley View site) The temperature rose to a high of 6C for the third consecutive day, from a low of -1C, and was still 2.5C at 1800. Ground winds were NW-W gusting to 50 km/h in the morning, diminishing to 15-20 km/h in the afternoon and becoming WNW to W after 1600. Ridge winds were strong WNW to NNW to 1400 and then became moderate to strong WNW to W, and the upper flow appeared to be strong W all day. It was cloudless until 1000 when cirrus cloud began to develop reaching 80% at 1300, and for the rest of the day there was a spectacular mixture of 30-100% lenticular, altocumulus and altostratus high-wing cloud that gave an excellent backdrop to locate and identify high-flying raptors. It was the most extended raptor movement seen so far this season with 10 birds of 4 species moving between a Golden Eagle at 1041 and 2 Golden Eagles at 1755, with 7 birds moving after 1700. The flight comprised 10 Bald Eagles (6 adults, 2 subadults and 2 juveniles), 2 adult Northern Goshawks, 1 light morph Rough-legged Hawk and 6 adult Golden Eagles. The last 3 days have yielded 51 migrant raptors which is good movement for February. 11.08 hours (86.42) BAEA 10 (35), NOGO 2 (4), RLHA 1 (3), GOEA 6 (17) TOTAL 19 (59)

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