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Description: |
12 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 Passeriformes, family tyrannidae." |
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"Tyrannus crassirostris ; French: Tyran à bec épais ; Spanish: Tirano pico grueso, Tirano piquigrueso." |
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Bibliography Note: |
Includes bibliographical references (pages 10-11). |