Friday 22 February 2019

Polyphony in Common Swift calls



Common Swifts express themselves copiously with their voices.
This example is the third trill of fourteen in a ten-second sequence. Amazingly, the swift produces not one note but at least three simultaneously.


Blogger deosn't seem to do audio clips yet, but you can see the spectrogram, listen to the call and read a little analysis of it on the page Spectrograms of the call of the Common Swift.

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