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By: Flemming, Stephen P. (Stephen Peter), - Bancroft, Robert P.Type: ArticleIn: The journal of raptor researchVolume: 24Series:Issue: 1-2Date: 1990Page Range: 26--27Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects:
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By: Prévost, Yves A. - Bancroft, Robert P. - Seymour, Norman R.Type: ArticleIn: The Canadian field-naturalistVolume: 92Series:Issue: 3Date: 1978Page Range: 294--297Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects: