Marty:
Well now I remained confused (not unusual). I guess
this CD will be burned with the song labeled
"unknown".
Greg Kunkel
--- Marty Michener <> wrote:
> Greg:
>
> At 09:40 AM 7/1/2003 -0700, you wrote:
> >Thanks Martyn and Doug
> >
> >Checking again with Borror's sonagrams I can see
> you
> >are right about the Blackburnian.
>
> Well EnjoyBirds Blackburnian is MUCH higher pitched
> - 6 - 9 kHz, not 3 - 5
> as in your sample. I am not sure about how
> diagnostic pitch is. The
> "Warbler Guide" by Dunn and Garrett, (without a
> single reference to actual
> pitch, actual time or to any spectrogram, and hence
> almost useless in song
> diagnosis), but says the species is often "too high
> pitched for many
> birders to hear" - a statement usually reserved for
> well above 6 kHz, where
> this mystery species has NO energy.
>
> I do agree that 1, 2 and 4 are likely the same
> species, but I have
> recordings of a Yellow-rump doing a similar
> high-slurred ending (which I
> recorded on three successive days in Massachusetts,
> failing to see it and
> believing it to be a Blackburnian, but finally
> seeing it on the last day
> and visually it was a completely typical eastern
> Yellow-rump). They are
> usually in about this right range, and of extremely
> variable timing. So,
> I would give the probability for Dendroica fuscus
> less than 80% because of
> this atypical voice range.
>
> Now if you were to consider a Cerulean I might agree
> with you. Much lower
> and in the right pitch range, the usual Cerulean
> song simply rises at the
> end in a "zhreee?", and so this pattern in these
> three examples is
> certainly atypical, but the pitch range is more
> nearly correct. Certainly
> the Cerulean is declining in numbers but still
> likely abundant in the
> Catskills. So that's my vote, I guess. I do
> overall agree with Greg the
> song, like such a high percentage of warbler
> recordings, is problematic.
>
> >The AMRO threw me because of the flute-like phrases
> that I had not heard
> >before.
>
> that may be from all the mountain air ;^)
>
> > Greg Kunkel
>
> my best regards,
>
> Marty Michener
> MIST Software Associates PO Box 269, Hollis, NH
> 03049
>
> EnjoyBirds.com - Software that migrates with you.=20
> http://www.EnjoyBirds.com
>
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