Fascinating to see how much energy is expressed between 6 & 10kHz,
Jim. And there's a lot of information, there, for sure.
Jeff Lucas (Purdue University) has demonstrated that species he's
been looking at actually have the ability to pitch- and time-shift
when receiving signals so that what they hear would tend to fit within
the biophonic structure of the given habitat they occupy.
Bernie
On Jul 20, 2011, at 8:27 AM, Jim Morgan wrote:
> I find it difficult to fully appreciate the complexity of the
> Grasshopper
> Sparrow's song. To my ears, and they suffer from old age, the song
> sounds
> like an ordinary insect buzz. Of course this is the reason it is
> caller a
> grasshopper Sparrow.
>
> Anyway I am posting a spectrogram if it's song and it sure doesn't
> look like
> a simple buzz. Instead you see a very complex series of different
> notes,
> many of which I cant even hear.
>
> When I look at the spectrogram I get a better appreciate the effort
> this
> little bird puts into it's song.
>
> So for those of you that are interested here is the spectrogram:
>
> https://picasaweb.google.com/fundador.photos/Temp?authkey=Gv1sRgCKzpsJLJ27HcMQ
>
> #5631299589922746226
>
> Jim Morgan
> Prescott, AZ
>
>
>
>
>
> ------------------------------------
>
> "While a picture is worth a thousand words, a
> sound is worth a thousand pictures." R. Murray Schafer via Bernie
> Krause.
>
> Yahoo! Groups Links
>
>
>
>
Wild Sanctuary
POB 536
Glen Ellen, CA 95442
707-996-6677
http://www.wildsanctuary.com
Google Earth zooms: http://earth.wildsanctuary.com
SKYPE: biophony
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