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Bird Migration by Thomas Alerstam (Paperback, 1993)
Price:
AU $151.23
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By Thomas Alerstam. Author Thomas Alerstam. The rotating world of migratory birds; 3. ; Bibliography; Index. The migration of birds is one of the most astonishing feats in the natural world. Millions of bird migrate often very long distances in order to benefit from seasonal resource surpluses and to avoid predators and competitors.