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 4, 2010

April 4 [Day 47] (Valley View site) The temperature rose from a low of -3.5C to 5C at 1400 and was 2C at 1900, ground winds were mainly SW gusting to 35 km/h and ridge winds were WNW-NW strong to moderate, becoming moderate after 1700. Cloud cover ranged from 80 down to 30% mainly cumulus and very thin cirrostratus giving generally good to excellent observing conditions. A total of 36 raptors of only 3 species migrated between 1050 and 1757 with 27 of the birds moving between 1300 and 1700, the flight comprising 2 adult Northern Goshawks, 5 adult Red-tailed Hawks (3 light calurus, 2 dark harlani) and 29 Golden Eagles (16a,9sa,4j). Around 0830 5 species of woodpecker were present simultaneously near the site: a male American Three-toed Woodpecker was drumming on a snag to the south on which a pair of Downy Woodpeckers was also perched, a female Hairy Woodpecker was feeding on a tree to the east, and to the north a Pileated Woodpecker was calling while two male Northern [Red-shafted] Flickers were bickering in a grove of aspens. 12 hours (546.6) NOGO 2 (67), RTHA 5 (40) GOEA 29 (1959) TOTAL 36 (2459)

Mount Lorette [Day 35] (Bill Wilson) The temperature rose to 3C from a low of -6C and by 2000 had fallen again to -4C, ground winds were SW-W 5-10 gusting 20 km/h and ridge winds were moderate W all day. Cloud cover was 90-5% mainly cumulus with some thin cirrus developed in the morning. The first Golden Eagle of the day appeared at 0906 but the second did not move until 1352 which was followed by 17 more eagles, 8 of which (1 adult Bald Eagle and 7 Golden Eagles), were seen between 1700 and 1800, with the last Golden Eagle flying NW at 1907. The Golden Eagle count comprised 7 adults, 4 subadults, 3 juveniles and 3 birds of unknown age. 14.33 hours (396.6) BAEA 1 (74), GOEA 17 (1090), UE 1 (11) TOTAL 19 (1214)

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