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5/07/2005

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Migration Monitoring at TTP-April 29-May 5

It was eerily quiet at Tommy Thompson Park Bird Research Station for the majority of the update period. Migration was almost unapparent from April 25-May 4 as birds were likely held further south by colder temperatures in the Great Lakes region. A Turkey Vulture was observed on May 1st, which is an unusual species for us and the first Common Grackles were banded on May 4. Ruby-crowned Kinglets are still coming through in small numbers although Golden-crowned Kinglets have largely departed the Toronto area.
 
Interestingly, most species are arriving later than normal at Tommy Thompson Park in 2005 (see below for comparison of 2005 vs.2004 Species Total). Yellow Warbler first appeared on April 23 in 2004 and as of May 4 this year none had appeared. However warmer air on May 5 produced several Yellow Warblers as well as the first White-crowned Sparrow, House Wren and Nashville Warbler. In all, 60 birds were banded on this day, which was dominated by Hermit Thrush and White-throated Sparrow. Indeed, the birds had finally arrived! With the floodgates now open we can look forward to many more new arrivals and the incoming waves of Yellow-rumped "Myrtle" Warblers and White-throated Sparrow.
 
HIGHLIGHTS
 
Banding
 
May 1
1-Brown Thrasher
1-Northern Waterthrush
May 5
17-Hermit thrush
3-Brown Thrasher
1-Nashville Warbler
2-Yellow Warbler
2-White-crowned Sparrow
 
Observations
 
April 29
4-Wood Duck
1-Blue-gray Gnatcatcher
1-Western Palm Warbler
May 1
40-White-throated Sparrow
May 2
3-Rusty Blackbird
May 3
1-Cooper's Hawk
May 4
1-Peregrine Falcon
16-Myrtle Warbler
2-Purple Finch
May 5
25-Hermit Thrush
6-Chipping Sparrow
 
Season Banding Total
2005-873
2004-672
 
Season Species Total
2005-110
2004-129
 
Dan Derbyshire
Coordinator, Tommy Thompson Park Bird Research Station (TTPBRS)
Toronto and Region Conservation (TRCA)
 
TTPBRS Sightings: http://tboweb.blogspot.com/