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October 18 2003
This update on migration monitoring results encompasses the period of
October 9th-18th.

723 birds were banded for the 10 day update period at a rate of 72
birds/day which is consistent with the average for the previous update
period.

Recent highlights include: Lapland Longspur (observed on the 19th),5
Pectoral Sandpiper and 1 Northern Goshawk (obs. 14th of October)and
increased numbers of Slate-coloured Junco, White-throated, Fox,
Swamp, Song and White-crowned Sparrows. The first American Tree
Sparrow was observed this morning.

There has been much speculation over the weather events contributing to
migrant "fallout
s" at Tommy Thompson Park. The past two nights have
been nearly identical in terms of cloud cover and temperature. 55
birds were banded yesterday and 138 were banded today. Future
analysis of weather data with census and banding totals will be
instructive.

October 18-138 newly banded birds:
Eastern Phoebe-2
Black-capped Chickadee-2
Red-breasted Nuthatch-1
Brown Creeper-7
Golden-crowned Kinglet-50
Ruby-crowned Kinglet-28
Hermit Thrush-3
Myrtle Warbler-7
Black-throated Green Warbler-1
Song Sparrow-6
Swamp Sparrow-2
White-throated Sparrow-9
Slate-coloured Junco-21

Thanks to following volunteers for their efforts today:
Mary Boswell
Diego Garcia-Bellido
Larissa Neumann
Barbara Myers
Knud Rasmussen
Shuang X
u

The season banding total for Tommy Thompson Park Bird Research
Station now stands at 2429 and the season species total has reached 143.

Cheers,
Dan Derbyshire
BIC, Tommy Thompson Park Bird Research Station