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, October 4, 2007

October 3 [Day 37] At 0600 the peaks and ridge appeared almost clear, but when I arrived at the site everything was obscured, it was snowing lightly with 4cm fresh on the ground and the temperature was -1C with a NW wind gusting 30 km/h. As it showed no sign of clearing I came down at 0950, but re-ascended at 1230 when the cloud appeared to be lifting. The signs were misleading, however, as the cloud remained firmly on the peaks and the ridge was regularly swept by snow pellet and snow showers driven by 30 km/h NW to WNW winds. As compensation the temperature did climb to zero. Finally, after 1600 the clouds suddenly lifted producing sunny skies for about 1.5 hours before heavy snow returned obscuring everything for the rest of the day. Not surprisingly raptor movement was non-existent for much of the day, with the first Golden Eagle not moving until 1458 when the peaks to the north were still in cloud, and a second Golden Eagle and a Merlin came through about an hour later. When the clouds finally lifted at 1600 raptors started migrating immediately and 33 birds moved before 1700 and a further 9 before 1728 when snow squalls re-developed to the north. The movement involved 8 species including the 28th Peregrine Falcon (a juvenile) of the season and 2 adult Harlan’s Red-tailed Hawks. Despite the conditions in the morning there was a surprisingly good movement of songbirds including 42 American Robins, 40 Ruby-crowned Kinglets and 20 juncos as well as a male Downy Woodpecker. There was also a second wave of movement late in the afternoon coincident with the clearing that included another 46 robins, 32 juncos, 5 Bohemian Waxwings and 7 Pine Grosbeaks. The numbers of Common Ravens moving to the NW to roost late in the afternoon has been gradually increasing over the last couple of weeks and today rose to over 40 birds. 9.25 hours (406.6) BAEA 6 (55), SSHA 14 (600), COHA 3 (159), NOGO 1 (30), RTHA 3 (157), GOEA 18 (884), MERL 1 (9), PEFA 1 (28) TOTAL 47 (2104)

No comments:

Blog Archive