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By: Smith, Paul G RType: ArticleIn: The Wilson bulletinVolume: 96Series:Issue: 4Date: 1984Page Range: 561--574Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-Subjects:
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By: Smith, Paul G RType: ArticleIn: The Canadian field-naturalistVolume: 117Series:Issue: 2Date: 2003-04-01Page Range: 173--183Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects: