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, March 14, 2010

March 13 [Day 25] (Valley View site) (Bill Wilson) The temperature reached a high of 6C at noon from a low of 2C, Ground winds were variable in the morning, gusting to 30 km/h and became steady S in the afternoon again gusting to 30 km/h, ridge winds were mainly moderate WNW all day and cloud cover was 60-100% cumulus, altostratus and cirrus giving a good observing backdrop all day. Six raptors (1 Bald Eagle and 5 Golden Eagles) moved before 0800, but by noon the total was only 17. Movement was steady throughout the afternoon, however, peaking at 28 between 1500 and 1600, and for the first time in several days no birds were seen after 1800. With the exception of 1 Prairie Falcon all migrants were eagles with 12 Bald Eagles (10a,2j) and 84 Golden Eagles (81a,3j). Non-raptor migrants included 12 unidentified (silent) swans and 2 Canada Geese flying high to the east and 60 Grey-crowned Rosy-Finches and a total of 21 Pine Grosbeaks flying high to the north. A briefly singing Varied Thrush was the 36th bird species for the season. BAEA 12 (178), GOEA 84 (590), PRFA 1 (4) TOTAL 97 (808)

Mount Lorette [Day 13] (Ron Dutcher) Ridges were obscured so Ron observed at Lusk Creek until noon when the cloud front moved to the east, after which he relocated to the Mount Lorette (Hay Meadow) site, where the temperature reached 3C between 1400 and 1600. surface winds at Lusk Creek were light, and at Lorette they were W to SW gusting to 20 km/h and moderate at ridge level. Cloud cover in the afternoon was 60% cumulus becoming cloudless after 1600 and the Fisher range ridge finally completely cleared after 1300. Lusk Creek yielded 12 Golden Eagles, 11 of which occurred between 1000 and 1100 and 1 at 1115, while 3 occurred at Lorette. Two birds flying high to the north periodically disappearing into the base of clouds were identified as Red-tailed Hawks. 9 hours (140), RTHA 2 (4), GOEA 15 (282) TOTAL 17 (331)

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