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, April 27, 2010

April 26 [Day 67] (Valley View site) (Dawn Hall to 1200) The temperature reached a high of 12C at 1600 from a low of -4C at 0700, and it was still 10.5C at 1900. Ground winds were mainly light and variable and ridge winds were light to moderate W for most of the day. It was cloudless with some light valley fog until 1000 after which a mixture of cumulus, cirrostratus and cirrus cloud gradually increased reaching 100% after 1400 thinning to 40-80% between 1600 and 1730. The clear conditions produced some raptor movement but it was very slow with 13 birds moving between 0947 and 1649, with 4 of the birds occurring after 1600. The flight comprised the season’s 3rd adult Turkey Vulture, 1 late subadult Bald Eagle, 3 Sharp-shinned Hawks (1a,2u), 1 juvenile Cooper’s Hawk, 1 unidentified small Accipiter, 1 juvenile light morph calurus Red-tailed Hawk and 5 Golden Eagles (1a,1sa,2j,1u). A white-crowned Sparrow was the 63rd species of the season. 12.5 hours (778.7) TUVU 1 (3), BAEA 1 (374), SSHA 3 (41), COHA 1 (12), UA 1 (6), RTHA 1 (96), GOEA 5 (2090) TOTAL 13 (2784)

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