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By: Nenneman, Melvin P. - Murphy, Robert K - Grant, Todd A.Type: ArticleIn: The Canadian field-naturalistVolume: 116Series:Issue: 4Date: 2002Page Range: 580--584Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Nenneman, Melvin P. - Grant, Todd A. - Sopndreal, Marriah L. - Murphy, R KType: ArticleIn: The journal of raptor researchVolume: 37Series:Issue: 3Date: 2003Page Range: 246--252Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects: