Atlas of wintering North American birds : an analysis of Christmas bird count data /
The Atlas of Wintering North American Birds represents the effects of thousands of people who have participated in the Christmas Bird Counts, an annual event sponsored since 1900 by the National Audubon Society. Unlike a conventional field guide, the Atlas doesn't show what birds look like, but...
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| Format: | Book |
| Language: | English |
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Chicago :
University of Chicago Press,
1988.
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