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Bird Songs Change Over Time04:55
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A UMass Amherst researcher says certain types of bird songs change over time — they go in and out of fashion — but the birds prefer the classics when it comes to love songs. You can read the study here: (PDF). We get an explanation from the researcher and hear some of the bird songs.

Guest:

  • Bruce Byers, associate professor of biology, University of Massachusetts, Amherst

This program aired on August 30, 2010.

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