Thanks Bill. I did hear a few typical Lincoln's/Swamp sparrow dts but
was not confident enough to report. If there were that few Black-throated
Blues, I'm curious what most of the abrupt tsip notes might have been? There
were certainly way fewer of what I would consider typical buzzy Dendroica-type
zeet notes than what I'm used to hearing on most nights.
KEN
Ken Rosenberg
Conservation Science Program
Cornell Lab of Ornithology
607-254-2412
607-342-4594 (cell)
k...@cornell.edu
On Sep 21, 2011, at 9:55 AM, Bill Evans wrote:
Ken appears to have tuned into one of the biggest calling night of the season
so far in central NY. The acoustic station at Alfred Station, NY logged its
season high number (988) of warbler and sparrow flight calls last night
between 8:30PM-5:30AM. Based on spectrographic analysis roughly 4 out of 100
were Common Yellowthroat, 2 out of 100 were Black-throated Blue, and 2 out of
100 were Chestnut-sided. Also notably in the mix were good numbers of
presumed Lincoln's Sparrow calls.
Bill E
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