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By: Czapka, Stephen J - Johnson, L. Scott (Lyle Scott),Type: ArticleIn: The Wilson bulletinVolume: 112Series:Issue: 1Date: 2000Page Range: 72--81Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-Subjects:
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By: Johnson, L. Scott (Lyle Scott),Type: ArticleIn: Raptor researchVolume: 17Series:Issue: 3Date: 1983Page Range: 93--93Publication Info: Vermillion, S.D, Raptor Research Foundation, [1972-1986]Subjects: