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By: Bird, David M. (David Michael), - Laguë, Paul CType: ArticleIn: Raptor researchVolume: 10Series:Issue: 3Date: 1976Page Range: 92--96Publication Info: Vermillion, S.D, Raptor Research Foundation, [1972-1986]Subjects:
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By: Bird, David M. (David Michael), - Laguë, Paul CType: ArticleIn: Raptor researchVolume: 10Series:Issue: 1Date: 1976Page Range: 1--8Publication Info: Vermillion, S.D, Raptor Research Foundation, [1972-1986]Subjects: