The South Livingston Raptor Count for the fall migration of 2009 has now begun. First official day of counting began on 25th August 2009. Follow the daily movement of raptors on this blog updated daily by Peter Sherrington. If you enjoy and are inspired by what you are reading, and would consider supporting or joining RMERF, please click on Membership for details.

Tuesday, December 1, 2009

December 1 [Day 97] (Valley View site) A cold front passed overnight dumping 18 cm of fresh snow at the site and lowering the temperature to -13C under a cloudless sky at 0720. Ground winds were initially light NE changing to WSW in the afternoon with occasional gusts to 15 km/h. Ridge winds were initially N to NW light to moderate until 1130 when a light to moderate W flow established becoming moderate after 1500. Up to 30% cumulus cloud cover developed between 1130 and 1630 giving excellent observing conditions, and under sunny skies the temperature rose to -3C at 1300 falling to -6C at 1700. December raptor movement started promisingly with a Rough-legged Hawk flying south at 0818 and an adult Bald Eagle gliding south at 0845, but the next birds did not appear until 1201 when 2 Bald Eagles, an adult and a juvenile, went south. There was then another long gap until 1523 when a Rough-legged Hawk flew overhead to the south and the last migrants of the day were 2 more Bald Eagles, an adult and a juvenile, at 1546. Migration conditions appeared to be ideal all day so the passage of only 7 birds may suggest that we are finally running out of migrants. An American Dipper flying high from the Gold Creek canyon towards the west at 0756 was a first December record, and was reminiscent of crepuscular high flight away from a river that was first observed at our Mount Lorette site which may be movement between watersheds or even true migratory flight. 10 hours (1092.4) BAEA 5 (653), RLHA 2 (83) TOTAL 7 (7104)

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