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By: Hovis, J - Snowman, T D - Cox, V L - Fay, R - Bildstein, Keith L. (Keith Louis),Type: ArticleIn: Raptor researchVolume: 19Series:Issue: 1Date: 1985Page Range: 15--19Publication Info: Vermillion, S.D, Raptor Research Foundation, [1972-1986]Subjects: