The South Livingstone Raptor Count for the fall migration of 2008 has now begun. First official day of counting began on 25th August 2008. Follow the daily movement of raptors on this blog updated daily by Peter Sherrington.

Tuesday, September 2, 2008

September 2 [Day 8] It was a much more pleasant day although the temperature at 0800 was 0C and the Livingstone Range to the north was not completely clear of shrouding cloud until1020. The wind varied between W and WNW occasionally gusting to 40 km/h but normally 20-30 km/h and the temperature briefly reached 10.5C at 1500. Cloud cover was 10-70% cumulus until 1800 when cirrus cloud developed above the cumulus, and viewing conditions were excellent all day. There was a slow but steady movement of raptors starting with a Cooper’s Hawk at 0822 and including the first Merlin and migrant Prairie Falcon of the season, but despite the continuing apparently good migration conditions the only birds that moved after 1330 were 3 Golden Eagles one of which, a juvenile, looked as if it’s left wing had been shot. Despite the ragged nature of the wing it appeared to have no trouble soaring and glided south normally. After seeing the resident adult pair of Golden Eagles several times during the day, with the male displaying on occasion, I was surprised to see them at1838 soaring with a very fresh-plumaged juvenile that was calling incessantly, and they continued to stay together until after 1900. It appears that the pair did breed after all, but very late: there was no sign of nesting when we finished the spring count on May 19, and if the female had laid soon after that there would just be enough time for an early September fledging. There was an excellent movement of songbirds in the morning and even throughout the afternoon there was still a steady trickle of birds. The highlight was our first Olive-sided Flycatcher, the first flycatcher of the season and the 143rd bird species recorded in the study area since 2006. Other migrants included a spectacular movement of 347 Red-breasted Nuthatches moving south in small flocks of up to 20 birds until mid-afternoon, 6 Ruby-crowned Kinglets, 2 Mountain Bluebirds, 2 Townsend’s Solitaires, 71 American Robins, 23 Yellow-rumped Warblers, 3 Townsend’s Warblers, 7 Wilson’s Warblers, 1 Cassin’s Finch, 74 White-winged Crossbills and 196 Pine Siskins. Both the total number of birds (847) and species (26) were the highest daily totals so far this season. 11.75 hours (88) SSHA 7 (33), COHA 4 (6), RTHA 1 (5), GOEA 3 (16), MERL 1 (1) PRFA 1 (1) TOTAL 17 (77)

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