Hi Dan,
I'll take a stab at these images:
The first three images ("Unknown [clip2]", "Unknown [clip4, A]", "Unknown
[clip4, B]") all look like faint Savannah Sparrow night flight calls.
The fourth image ("SAVS?"), looks like a perfect Savannah Sparrow night
flight call.
The fifth image ("PIWA? SAVS?") is likely another Savannah Sparrow night
flight call (versus Pine Warbler), in part, because of the faint harmonic
visible.
The sixth image ("Wood Thrush?") does look pretty good for Wood Thrush.
Seventh image ("upsweep") seems most likely to be from a Northern
Waterthrush.
Image number eight, ("Wood Thrush NFC?") looks like it could be a faint Wood
Thrush flight call.
Image number nine ("BLBW?") is probably a Blackpoll Warbler.
Lastly, image number ten ("Unknown NFC") looks good for a shortened or faint
White-throated Sparrow night flight call.
Anyone have differing suggestions for these clips?
Thanks and good night listening!
Sincerely,
Chris T-H
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Chris Tessaglia-Hymes
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Ithaca, New York
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-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Dan Poalillo
Sent: Monday, September 26, 2011 6:34 PM
To: Nocturnal Flight Call Listserv
Subject: [nfc-l] An observation and ID help
So far this 'fall' migration I have heard almost no calls during
night-time listening (say about 10PM through 1AM) from my hillside in
Passaic County, NJ. I was puzzled why the birds appearing on radar
and apparently being heard by other posters on NFC were not calling in
my area. Today I decided to get up pre-dawn and see if I could hear
birds in the morning. Maybe at 'night' they were too high up because
of local topography and I could not hear them but as they descended in
the morning I would?
My hunch worked out and I heard many calls this morning, mostly SWTH,
when got outside despite hearing nothing between 10 and 11PM last
night. Anyone have any idea why this might be? I have no idea if my
topography guess holds any weight or if some other factor might be
playing a role.
Additionally, I have posted four new spectrograms from this morning's
recordings on my Flickr page. These might be simple IDs, but I am
still learning the ropes and any comments are appreciated. The new
images all have 9-26-11 in the description.
http://www.flickr.com/photos/flyordiedan/sets/72157626803578342/
Thanks for the comments and the insight,
Dan Poalillo
Passaic Co, NJ
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