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Singing a
familiar refrain
The Patuxent Wildlife Research Center has a wonderful bird identification website where there are lists of photos and videos of hundreds of birds. They also list many bird songs and calls at http://www.mbrpwrc.usgs.gov/bbs/song.html.
Try clicking on the song of the white-throated sparrow and we’re sure you’ll recognize this song.
It turns out songs are quite variable from one individual to another and sung repeatedly as if to get a particular version into the permanent sparrow record. We haven’t paid close attention to this, but we plan to .see if we can tell individuals apart using the songs.
What exactly the songs do is anyone’s guess, but they
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