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.

Saturday, March 6, 2010

March 6 [Day 19] (Valley View site) It was completely cloudless all day and the temperature reached 10C from a low of -4C. Ground winds were light or calm to 1245 when SW-W winds developed occasionally gusting to 25 km/h. The calm conditions in the morning resulted in just 1 migrant Golden Eagle at 1024 and steady movement didn’t start until 1218 after which it became fairly steady peaking between 1400 and 1500 with the passage of 15 Golden Eagles. The last migrant was a subadult Bald Eagle at 1725. For the first time Golden Eagles completely dominated the flight accounting for 40 (39a,1sa) of the day’s 45 migrants, and only 4 Bald Eagles (2a,2sa) were seen, 3 of which moved after 1654. A flock of 40 Grey-crowned Rosy-Finches flying north was the season’s 29th bird species, while a male and female White-winged Crossbill was the 30th. 11.5 hours (210.7) BAEA 4 (129), NOGO 1 (12), GOEA 40 (167) TOTAL 45 (324)
Mount Lorette [Day 6] (Jim Davis) Weather conditions were similar at Lorette where the temperature rose to 10.5C from -9C under cloudless skies, with calm conditions until noon and light mainly E winds in the afternoon. A total of 17 raptor migrants moved between 1151 and 1743, comprising 8 adult Bald Eagles, 8 Golden Eagles (6a,1sa,1j) and another adult light morph calurus Red-tailed Hawk. 11 hours (65.33) BAEA 8 (15), RTHA 1 (2) GOEA 8 (37) TOTAL 17 (64)

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