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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Ellis, David H. (David Harry) - Powers, L
    Type: Article
    In: Raptor research
    Volume: 16
    Issue: 4
    Date: 1982
    Page Range: 134--136
    Publication Info: Vermillion, S.D, Raptor Research Foundation, [1972-1986]