Subject: [Tweeters] Anna's vocalization or wing noise?
Date: Mar 5 12:29:28 2009
From: Patricia Loesche - loes at u.washington.edu


Yep -- Anna's makes this sound with its tailfeathers during its
display dive. Here is an article with nice audio and video clips:
http://berkeley.edu/news/media/releases/2008/01/30_hummingbird.shtml

Patti
Seattle/Fremont

On Mar 5, 2009, at 11:52 AM, Ed Swan wrote:

> For about the last month I have heard a single sharp whistle call
> note with no new bird to account for it when I've tried to track it
> down. It happens once and then usually it will be at least half a
> minute to a minute before I hear it again and I'll hear it two to
> three or four times before it stops. Earlier this week I heard the
> sound twice when our Anna's was doing its display. Could this be
> the source?
>
> Ed Swan
> Vashon Island
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