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By: Moyles, D L JType: ArticleIn: Raptor researchVolume: 13Series:Issue: 4Date: 1979Page Range: 120--120Publication Info: Vermillion, S.D, Raptor Research Foundation, [1972-1986]Subjects:
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By: Moyles, D L JType: ArticleIn: The Canadian field-naturalistVolume: 95Series:Issue: 3Date: 1981Page Range: 287--291Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects: