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, April 18, 2010

April 18 [Day 59] (Valley View site) (Denise Cocciolone-Amatto to 1200) It was another warm day with the temperature reaching 17C between 1500 and 1630 from a low of 7C and remained at 13.5 at 1900. Ground winds ranged from NW to SW gusting to 35 km/h around midday and becoming light after 1800, and ridge winds were W moderate to strong to 1700 after which they became light NW. Cloud cover ranged from 30-90% mainly cirrus in the morning with thickening cumulus cloud developing in the afternoon. A total of 30 raptors migrated between 0804 and1906 with peak movement of 7 birds between 1400 and 1500, and 1500 and 1600, with the flight comprising 4 Bald Eagles (3a,1sa), 3 Northern Harriers (1 adult male, 1 adult female and 1 juvenile), 1 adult Sharp-shinned Hawk, 2 adult Northern Goshawks, 6 calurus Red-tailed Hawks (5 light (4a,1u) and 1 dark adult), 2 Rough-legged Hawks (1 light, 1 dark), 11 Golden Eagles (2a,4sa,5j) and the season’s first Gyrfalcon, an adult grey morph bird at 1213 [species #56]. A female Cassin’s Finch at the site at 0905 was the 55th bird species of the season. 12.67 hours (684.5) BAEA 4 (369), NOHA 3 (8), SSHA 1 (31), NOGO 2 (76), RTHA 6 (80), RLHA 2 (36), GOEA 11 (2063), GYRF 1 (1) TOTAL 30 (2698)

No comments:

Post a Comment

Blog Archive