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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Bildstein, Keith L. (Keith Louis), - Post, William - Johnston, James - Frederick, Peter C
    Type: Article
    In: The Wilson bulletin
    Volume: 102
    Issue: 1
    Date: 1990
    Page Range: 84--98
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-