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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Mccracken, Kevin G - Paton, David C - Afton, Alan D
    Type: Article
    In: The Wilson bulletin
    Volume: 112
    Issue: 4
    Date: 2000
    Page Range: 457--466
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-