The South Livingstone Raptor Count for the fall migration of 2007 has now begun. First official day of counting began on 25th August 2007. Follow the daily movement of raptors on this blog updated daily by Peter Sherrington.

Thursday, September 20, 2007

September 20 [Day 25] The day started with 6 cm of fresh snow on the ground, 2C, W-NW and winds gusting 60 km/h, but with all the ridges with the exception of the Continental Divide ranges clear. By 1000, however, all peaks were again obscured, at 1015 snow redeveloped and we left the ridge around noon. Around 1530 it showed signs of clearing and at 1600 I again climbed to the observation site where the temperature was still 2C but the winds had dropped to 30-35 km/h, still with 100% cumulus/altostratus cloud cover. The cloud never fully left the peaks of the Livingstone Range to the north, but by 1930 the cloud cover had rapidly cleared to 60%. Only one Golden Eagle moved south in the morning before the weather closed in, but between 1657 and 1819 a further 11 Golden Eagles, 2 Bald Eagles a Cooper’s Hawk and an adult dark morph “Harlan’s” Red-tailed Hawk moved high to the south just west of the ridge. The prospect for a significant movement tomorrow is good. Not surprisingly very few passerines were found on the ridge, but late in the day a single Common Redpoll perched near the site for the 80th bird species to be recorded this season. The snow provided good tracking conditions for the first time and included Bobcat tracks at the site, but the mammal of the day was a summer pelage Long-tailed Weasel at the site, spectacular against the fresh snow. It was the first seen there although I have seen its tracks before, but it was a first ever sighting for Elly and Arnie Weisbrot who are spending a few days observing at the site before following the eagles south for the winter. 8.25 hours (272.1) BAEA 2 (13), COHA 1 (118), RTHA 1 (99), GOEA 12 (118) TOTAL 16 (907)

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