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.

Thursday, April 15, 2010

April 14 [Day 55] (Valley View site) The ridges started to quickly clear after 1100 and I was at the site at 1245 where there was 10-15 cm of fresh snow on the ground but the temperature had already risen to 9C, reached 12C at 1800 and was still 11C at 1900 by which time most of the snow had melted. Ground winds were calm to light variable very occasionally gusting to 20 km/h, ridge winds were NW light to moderate and cloud cover was 100% altostratus with minor cumulus giving very hazy sunshine. Raptor movement was very slow and sporadic with only 5 birds, 2 adult Bald Eagles, 1 light adult Red-tailed Hawk and 2 Golden Eagles (1sa,1j) moving between 1315 and 1831. A few Columbian Ground Squirrels were seen and heard for the first time this season. 6.45 hours (632.3) BAEA 2 (345), RTHA 1 (53), GOEA 2 (2014) TOTAL 5 (2547)

Mount Lorette [Day 45] (Alan Hingston) The temperature reached a high of 14C at 1700 from a low of -4C and was still 10C at 1930, ground winds were calm to light variable in the morning and NNE 10 gusting 15 km/h in the afternoon, ridge winds were light, S in the morning and N-NW in the afternoon, and cloud cover was 100% cirrostratus in the morning diminishing to 60% altocumulus and cirrus in the afternoon giving good observing conditions all day. Ridges were clear all day, and the light winds resulted in each of the day’s 5 migrant Golden Eagles (2a,1sa,1u) taking completely different routes to the north between 1342 and 1537. 12 hours (507) GOEA 5 (1159) TOTAL 5 (1307)

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