So that we are all talking about the right sound in this soundscape.
I painted the image of the sound I am trying to id. This deletes a lot
of the other birds and of course adds some artifact like sounds too.
But it illustrates better this quiet, slow "electronic like whistle".
I am convinced from listening to many examples that it is a natural
sound but still have no clue as to what it is.
Isolated sound example at:
http://home.comcast.net/~richpeet/unkhi.mp3
--- In "Rich Peet" <>
wrote:
> State Line WI and IL in US.
> Forrest edge 1/2 mile from any road or building.
>
> Hook shaped whistle decending clean then ascending not as clean.
> Sometimes starts as low as 8,000 cycles and sometimes starts above
> 20,000. Duration also variable. Heard as well as recorded. Direction
> could not be determined to get the dish on it. Frequency was about 1
> time per min. I did not have 24/96 equipment with me this day to
> capture the upper range. I will return for that if the sound is
natural.
>
> My best guess right now is Brown-headed Cowbird. But I did not know
> they could go ultrasonic.
>
> Visual sound 122kb download at:
> http://home.comcast.net/~richpeet/unk.JPG
>
> Two sound examples 1.2 meg download at:
> http://home.comcast.net/~richpeet/unk.mp3
>
> Any help?
>
> Rich Peet
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