Bird Songs
http://thekojonnamdishow.org/shows/2005-04-21/bird-songs
How do baby birds learn to sing? Do birds have regional accents or dialects? A researcher who has studied birds for more than thirty years explains how and why birds sing, and what we can learn by better understanding their songs.
Guests
Donald Kroodsma
author "The Singing Life of Birds" (Houghton Mifflin)
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