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| | Buteo Books: Bird Books, Ornithology Texts, Birding Gear - Bird Song |
 | | He considers how birds acquire their songs (some species learn them; others have their tunes "encoded somehow in nucleotide sequences of the DNA"), what makes the songs unique, what functions they serve, and how they've evolved. |
 | | A CD of the bird songs discussed is included, as are descriptions of the recording equipment Kroodsma used and explanations on how to make similar recordings and "sonagrams." Kroodsma is a warm, encouraging guide to the world of birdsong, and his enthusiasm is contagious. |
 | | Birdsongs are learned rather than instinctual (the brown thrasher has a repertoire of 2,ooo songs), and Stap delves into the complex processes by which birds acquire them, the individual idiosyncrasies and regional dialects that color them, and the mating behaviors and territorial antagonisms they regulate. |
| www.buteobooks.com /archives/birdsong.html (854 words) |
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