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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Wrege, Peter Howard, - Cade, Tom J.
    Type: Article
    In: Raptor research
    Volume: 11
    Issue: 1-2
    Date: 1977
    Page Range: 1--46
    Publication Info: Vermillion, S.D, Raptor Research Foundation, [1972-1986]