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The Bird Class
註釋From emperor penguins nesting in the frozen reaches of Antartica to peregrine falcons that have made themselves at home among urban skyscrapers, birds are amazingly adaptable. The Bird Class surveys the many orders and families of living birds and traces the origins of these winged, feathered marvels. Bird biology, life cycles, behavior, and habitats are also explored. The Bird Class sounds a warning about the threats that many of the world's ten thousand bird species now face, and describes some of the actions being taken to protect them. Book jacket.