[TN-Bird] Fw: Fwd: Red Crossbill recording
- From: david kirschke <dkirschke@xxxxxxxxx>
- To: Bristol Birds <bristol-birds@xxxxxxxxxxxxx>, TN-birds <TN-bird@xxxxxxxxxxxxx>
- Date: Fri, 27 May 2011 15:59:00 -0700 (PDT)
I was contacted by Matthew Young of Cornell about typing the Red Crossbills in
Erwin by flight call. He determined they were Type 1, the expected type, from
a
recording made by Dave Caton on his cell phone.
See the email exchange below if interested (read from bottom to top).
Date: May 20, 2011 10:36:53 AM EDT
>
>To: "David M. Caton" <dcaton55@xxxxxxxxx>
>
>Subject: RE: Red Crossbill recording
>
>
>Hi again Dave,
>
>I happened to swing by work to analyze the recording. As I suspected, the
>birds
>are type 1. Again, I'm amazed at the quality of the recording given it was
>recorded with a cell phone --no, it's not nearly as good as a recording with
>professional gear, but it's a better recording than many recordings I've
>listed
>to that were taken with home computer rigs.
>
>
>Here's the attached spec -- while faint, they show the downward modulated
>component with initial upslur -- at least on most of them the initial upslur
>is
>present. The absence (or weakness) of the initial upslur on some of the specs
>is
>more of a function of the cell phone recorder not being sophisticated enough
>to
>pick up all of the harmonics. Nonetheless, a nice recording that did the
>trick.
>
>
>If it happens, I would still be interested in better (or even more of the same
>with cell phone) recordings.
>
>
>cheers, and thanks again,
>Matt
>________________________________________
>From: David M. Caton [dcaton55@xxxxxxxxx]
>Sent: Thursday, May 19, 2011 3:10 PM
>To: Matthew A. Young
>Subject: Red Crossbill recording
>
>Mr. Young,
>
>David Kirschke forwarded your e-mail to me. I own the feeders that the red
>crossbills have been coming to for the past month in Erwin, TN. I noted your
>question regarding any recordings of the birds. I told David that he could
>record them for you. In the meantime, I recorded them today with my cell
>phone
>(see attachment). I hope this helps until such time a proper and better
>recording can be made. Please let me know if this works out for you. I also
>have video but without audio.
>
>Dave
>
>----- Forwarded Message ----
>From: Matthew A. Young <may6@xxxxxxxxxxx>
>To: "dkirschke@xxxxxxxxx" <dkirschke@xxxxxxxxx>
>Sent: Wed, May 18, 2011 1:03:06 PM
>Subject: Red Crossbills in Tennessee
>
>Hi David,
>
>I happened to see your post about the Red Crossbills in Tennessee. I'm a
>crossbill researcher at Cornell and
>I was wondering if anyone took pictures or has footage of the Red Crossbills?
>
>If you don't know, the Red Crossbill complex is made up of 10 different North
>America call types.
>Some researchers think that some of the call-Types act as good biological
>species.
>Type 1 is basically the Appalachian call type, but Type 2's occasionally
>occur
>in the central and southern Appalachians as well. The other 8 do not
>occur with any frequency at all south of NY. In the past few years I've
>received
>numerous recordings from Georgia,
>North Carolina, Virginia, PA and NY. They have all turned out to be Type 1.
>Birds can be recorded by video camrecorders with audio, expensive recording
>equipment,
>and even some cell phones now. I can usually make a spectrogram of even
>pretty bad recordings. Getting recordings is essential to solving the
>crossbill
>riddle.
>
>Oh, you are basically right about plumages. The color of the throat is key
>though --if it's whitish (or really no color) it's a female or young bird,
>if it's red like the rest of the bird, it's male. You can have "adult" male
>Red
>Crossbills that are yellowish and
>orange-ish since it's really only the very oldest birds (usually 2.5- 3 years
>or
>more) that are the brightest red.
>
>thanks in advance for any help,
>Matthew A. Young
>Audio Production Engineer
>Cornell Lab of Ornithology
>
>
>
>
>
>From: "Matthew A. Young" <may6@xxxxxxxxxxx>
David M. Caton
dcaton55@xxxxxxxxx
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