Fall Migration at TTPBRS- Sept 23-29, 2006
Nashville Warbler (© Dan Derbyshire)
The week began on September 23rd with moderate winds from the south. There were fewer birds around than the preceding days, although good numbers of Nashville Warbler and White-throated Sparrow were evident. It has been a record-breaking fall for many species including Nashville Warbler, which have been present in very high numbers on a daily basis since late August. Weather took a turn for the worse on the 24th, resulting in no coverage for the day. During the minutes before dawn on September 25th, it was clear that a major fallout had occurred as a chorus of calls and partial songs were heard. A total of 221 birds were banded and 68 species were recorded by day's end. Yellow-bellied Sapsucker and Yellow-shafted Flicker were abundant on the day as were both species of kinglet. Nashville Warbler, Black-throated Blue Warbler, and Myrtle Warbler were the most conspicuous of 15 warbler species. Orange-crowned Warbler (2 banded, 8 total recorded) were also numerous. Bird activity was strong once again on the 26th as 140 birds were banded, consisting mostly of kinglets, thrushes, and Nashville Warblers. The highlight of the day was the capture and banding of a Scarlet Tanager and the observation of a Whip-poor-will (second for TTPBRS). Purple Finch and Brown Thrasher finally made their first appearances this fall on the 27th on what was an otherwise quiet morning of fieldwork. Winds were light out of the north on the 29th which likely assisted in bringing an influx of birds into Tommy Thompson Park. A total of 178 birds were banded on the day and 0 recaptured. A day with no recaptures at TTPBRS is very unusual and is a sure sign that a turnover of birds had occurred. Decent numbers of raptors were recorded late in the day which included a record high count of 10 Turkey Vultures. It was yet another big kinglet day as 220 Golden-crowns and 45 Ruby-crowns were counted. Hermit Thrush, White-throated Sparrow and Black-throated Green Warbler were also recorded in high numbers.
13-Black-throated Blue Warbler
1-Whip-poor-will (2nd record for TTPBRS)
Birds Banded: Aug 5-Sept 29
Observations: Aug 5-Sept 29