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8/21/2007

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Migration Monitoring at TTPBRS- Aug 12-18

Ovenbird (TTPBRS-TRCA)

The diversity of species during the second week of fall 2007 was very good, which made up for the many empty net checks. Weather was hot with variable winds from the south on August 12 as 15 birds were banded. Dominant migrant species on the day were Cedar Waxwing, Traill's Flycatcher and Yellow Warbler. The first Canada Warbler of the fall was banded. Winds switched to north for the 13th, but were likely too strong to encourage large numbers of birds to move. Five new arrivals for the fall were recorded including Pied-billed Grebe, Bay-breasted Warbler and the 5th banding record of Yellow-billed Cuckoo for TTPBRS. Conditions were suitable for an influx of migrants on the 14th, however just 15 birds were banded in six hours of effort. The weather must have been responsible for the arrival of seven new species for the fall, which included a record early Hermit Thrush, Semipalmated Sandpiper and Plover and a few warbler species. Very strong winds rolled in on the 15th, which closed many of our nets early. A full day of fieldwork on the 16th produced 18 new birds banded, the highest one-day banding total of the week! Highlight of the morning was an early Blackpoll Warbler. Numbers of Monarch Butterflies increased substantially on the 17th and the seasons' first Ovenbird and Northern Mockingbird were recorded. For the second time during the week, north winds and cooler temperatures failed to stimulate any significant push of southbound migrants on the 18th as just 8 birds were banded on the day.

Recent days of unstable weather has made for some interesting mornings, which have featured some surprising species, gathering monarchs (700-1000 at TTPBRS today) and one particular migration event that was truly unforgettable. Stay tuned to our website for an account of a migration spectacle from August 21st.
HIGHLIGHTS (banding records in bold)

Aug 12
2-Northern Shoveller
2-Short-billed Dowitcher
14-Purple Martin
80-Cedar Waxwing
1-Canada Warbler

Aug 13
1-Common Loon
1-Pied-billed Grebe
2-Least Sandpiper
1-Yellow-billed Cuckoo
1-Yellow-bellied Flycatcher
720-European Starling
36-Yellow Warbler
6-Myrtle Warbler
2-Northern Waterthrush
30-Baltimore Oriole

Aug 14
1-Semipalmated Plover
35-Eastern Kingbird
1-Hermit Thrush
3-Blue-gray Gnatcatcher
1-Chestnut-sided Warbler
3-Magnolia Warbler
1-Black-throated Blue Warbler
2-Black-and-white Warbler
1-Mourning Warbler
1-Semipalmated Sandpiper

Aug 15
199-Mallard
1-Veery
1-Swainson's Thrush

Aug 16
2-Blue-winged Teal
1-Red-breasted Nuthatch
1-Blackpoll Warbler

Aug 17
1-Black-billed Cuckoo
1-Northern Mockingbird
1-Ovenbird

Aug 18
9-Lesser Yellowlegs
1-Eastern Phoebe

Total Banded- Aug 5-18
2007-206
2006-248
2005-246
2004-341

Total Species- Aug 5-18
2007-94
2006-90
2005-96
2004-86