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This item may be Check for Availability This title in other editionsRavens in Winter
Synopses & ReviewsPublisher Comments:Why should ravens--which are usually solitary birds--share valuable food in the dead of winter? How clever are these birds? Do they have a language? These are some of the riddles that noted sociobiologist Bernd Heinrich, author of Bumblebee Economics and winner of the John Burroughs Medal, explores in this intriguing book. 16 pages of drawings.
Description:Includes bibliographical references (p. 337-354) and index.
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Science and Mathematics » Nature Studies » Birds » Ornithology
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