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By: Newman, Robert JType: ArticleIn: The Canadian field-naturalistVolume: 66Series:Issue: 3Date: 1952Page Range: 87--87Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Lowery, George H - Newman, Robert JType: ArticleIn: The Wilson bulletinVolume: 63Series:Issue: 4Date: 1951Page Range: 315--322Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-Subjects: