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Christmas Bird Count
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Christmas Bird Count

ornithology
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The Information Architects of Encyclopaedia Britannica

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The Information Architects of Encyclopaedia Britannica

Learn about this topic in these articles:

  • Boreal chickadee (Poecile hudsonicus)
    What Is the Christmas Bird Count?

    The Christmas Bird Count is an annual large-scale bird census organized by the National Audubon Society—a U.S.-based conservation organization—that takes place in early winter across the Western Hemisphere. It enlists volunteer bird-watchers to count birds within a 24-km- (15-mile-) diameter circle at specified locations on a…

    Read More

    The Christmas Bird Count is an annual large-scale bird census organized by the National Audubon Society—a U.S.-based conservation organization—that takes place in early winter across the Western Hemisphere. It enlists volunteer bird-watchers to count birds within a 24-km- (15-mile-) diameter circle at specified locations on a…

    Read More