Martyn,
Thanks for sharing your sounds. The recording season is winding down
here and the birds are going quiet. I had a great season recording
wetlands in Utah. Hope all of you got out for some good times. I
always enjoy when all of you share some sounds or experiences with
the group.
Last week I recorded some red crossbills. They are supposedly
divided by voice into 9 groups or subspecies. The location I
recorded had two clearly different populations in nearly the same
tree, their calls were dramatically different. One group that I've
been used to in the mountains of central Utah has calls like a barn
swallow, the other which I hadn't heard before almost sounded like
robin alarm calls. I'll have to post them when I get some time.
Anyone know where all the call types are posted so I can do some
comparisons?
Kevin
On Aug 3, 2008, at 11:38 AM, Martyn Stewart wrote:
> I leave a couple of monitor boxes around various habitats for the
> spring early choruses and the hours of recordings are then put into a
> database and species are then noted.
> I use a couple of song-meters tied to various trees.
> http://www.wildlifeacoustics.com/songmeter/
> Here is a variation of a spotted towhee I found on one of the
> recordings, it kind of finishes with an up-note. At the end of the
> file is the normal trill for reference.
> The first part of the recording is contaminated by aircraft (04:15 in
> the bloody morning)
>
> The recording is meant for monitoring purposes not quality of sound.
> I also found a pre-dawn song of the "Olive-sided flycatcher" little
> bugger started calling at 04:10, amazing.
>
> You can find the recording here.
>
> http://naturesound.org/This%20weeks%20recordings.html
>
> August 3rd 2008
>
> Spotted Towhee variation on trill
>
> Recorder soundmeter with built in omni microphones. Redmond WA USA
>
> 04:15 July 03 2008
>
> 44.1k 16bit: built in omni microphones.
>
> Recorder was tied to a tree for 2 weeks monitoring dawn choruses
>
> Martyn
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> 425-898-0462
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