9/10/2006

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Fall Migration at TTPBRS- Sept 2-8, 2006

Ruby-crowned Kinglet (D.Derbyshire)

The first week of September is an interesting period of fall migration, when flycatchers, orioles, and swallows have largely moved on, giving way to warblers, vireos, thrushes, and the first arrivals of late fall migrants such as the Ruby-crowned Kinglet (pictured above). September 2nd and 3rd were a "no go" as the remnants of hurricane Ernesto brought substantial rain and wind to the Toronto area. Fieldwork resumed on the 4th when we found north winds and a substantial movement of birds. A total of 102 birds of 20 species were banded which included high counts of Philadelphia Vireo, Magnolia, Black-throated Green, Blackburnian, Blackpoll, Wilson's and of course the omnipresent Myrtle Warblers of Tommy Thompson Park. Conditions were calm with low cloud on the following morning when 127 birds of 25 species were banded. The day featured high numbers of many warbler species and an increase in abundance of Swainson's Thrush, Veery, Bobolink, and Cedar Waxwing. Birding was very good once again on September 6 when the first noticeable movement of Sharp-shinned Hawks occurred. Also appearing were Ruby-crowned Kinglets, American Pipit, Solitary Sandpiper, and Blackpolls and Myrtles in scores. Between September 4th and 6th, a total of 560 Yellow-rumped "myrtle" Warblers were tallied which is astounding for the time of year! Banding was quiet on the 7th which gave opportunity to observe a very good raptor day for Tommy Thompson Park. The sightings included an adult Bald Eagle, 15 Sharp-shinned Hawks, 7 Northern Harrier, our 1st ever Broad-winged Hawk, and over 3000 high-flying Monarch butterflies (which look remarkably like hawks at high altitude)! Also recorded on the day were several newly arrived species such as, Swamp Sparrow, Brown Creeper, Winter Wren, American Coot, and American Wigeon. South winds on the 8th led to a quiet day overall as 13 birds of 11 species were banded. Shorebirds finally turned up in numbers on this day, the most notable of which were Pectoral Sandpiper and Semipalmated Sandpiper.

HIGHLIGHTS

Captures

Sep 4
4-Philadelphia Vireo
3-Blackburnian Warbler
12-Wilson's Warbler
1-Scarlet Tanager
Sep 5
10-Veery
17-Swainson's Thrush
1-Northern Parula
19-Magnolia Warbler
8-Ovenbird
3-Canada Warbler
Sep 7
1-Brown Creeper
1-Wood Thrush
1-Northern Parula
3-Palm Warbler

Observations

Sep 3
1-Northern Parula
Sep 4
34-Magnolia Warbler
130-Myrtle Warbler
9-Blackburnian Warbler
22-Blackpoll Warbler
Sep 5
1-Merlin
38-Swainson's Thrush
6-Cape May Warbler
240-Myrtle Warbler
35-Black-throated Green Warbler
28-Blackpoll Warbler
32-Bobolink
6-House Finch
Sep 6
2-Peregrine Falcon
1-Solitary Sandpiper
3-American Pipit
190-Myrtle Warbler
55-Blackpoll Warbler
25-American Redstart
Sep 7
1-Bald Eagle
1-Broad-winged Hawk (1st record for TTPBRS)
2-American Wigeon
1-Winter Wren
Sep 8
12-Semipalmated Plover
1-Pectoral Sandpiper
2-Semipalmated Sandpiper

Birds Banded: August 5-September 8
2006-1339
2005-818
2004-682
2003-467

Species Observed: August 5-September 8
2006-124
2005-128
2004-114