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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Parris, S D - Klaas, E E - Wilson, Ruth A.
    Type: Article
    In: Raptor research
    Volume: 14
    Issue: 3
    Date: 1980
    Page Range: 88--89
    Publication Info: Vermillion, S.D, Raptor Research Foundation, [1972-1986]