Description |
2 volumes : illustrations ; 22 cm |
Note |
"Unabridged and unaltered republication ... Part 1 was originally published in 1937 as Smithsonian Institution ... Bulletin 167; part 2 was originally published in 1938 as Smithsonian Institution ... Bulletin 170." |
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Includes index. |
Bibliography |
Bibliography: volume 1, pages 381-398; volume 2, 445-466. |
Subject |
Birds of prey.
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Birds of prey. |
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Birds -- North America.
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Birds. |
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North America. |
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Birds -- Behavior.
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Birds -- Behavior. |
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