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By: Buchanan, Joseph B. - Schick, Charles T. - Brennan, Leonard A. (Leonard Alfred), - Herman, S GType: ArticleIn: The journal of raptor researchVolume: 25Series:Issue: 2Date: 1991Page Range: 43--44Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects:
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By: Schick, Charles T.Type: ArticleIn: The Canadian field-naturalistVolume: 106Series:Issue: 2Date: 1992Page Range: 260--262Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects: