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Studying Nocturnal Songbird
Migration at Powdermill
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Powdermill is pleased to
announce its cooperation with New Jersey Audubon Society's Cape May Bird
Observatory in identifying important stopover areas and critical habitats
for migrating songbirds in Pennsylvania. Part of this project, entitled
Oases
Along the Flyway, involves recording calls
made by birds during nocturnal migration. Calls are then compared
to known birds' spectrograms to assess temporal and spatial patterns and
the relative abundance of species passing by several sites in Pennsylvania,
including Powdermill.
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From left to right Dr. David
Mizrahi, Vice-president for Research NJ Audubon, Vince Elia, Research Associate,
NJ Audubon, and Dr. David Smith, Director, Powdermill Nature Reserve, discuss
the project at the monitoring site on Powdermill.
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Flowerpot modified for recording
night migrants
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Pressure zone microphone
set inside in flowerpot
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Plastic dinner plate with
microphone circuit
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Close-up of microphone circuit
(bottom) and top of the pressure zone microphone (top)
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Microphone ready to record
nocturnal migrants!!
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Click
here to see and hear nocturnal migration at
Powdermill, including a very rare (at Powdermill) Bicknell's Thrush recorded
in the predawn hours 9/21/03!!!
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For
more information on making a microphone for recording migration or for
sound analysis software visit oldbird.org
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Banding
Home Current
Banding Totals Banding
Summaries Past
Pictorial Highlights |
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Michael Lanzone Updated
9-24-03 |