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Description: |
36 pages : color illustrations, color map ; 28 cm. |
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"Published ... with support from the American Ornithologists' Union, Cornell Laboratory of Ornithology, and the Academy of Natural Sciences"--Colophon. |
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"Order Anseriformes, family anatidae." |
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"Anas discors ; French: Sarcelle à ailes bleues ; Spanish: Cerceta ala azul." |
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Bibliography Note: |
Includes bibliographical references (pages 29-35). |