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By: Weeden, Robert B.Type: ArticleIn: The Canadian field-naturalistVolume: 74Series:Issue: 2Date: 1960Page Range: 119--129Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Weeden, Robert B.Type: ArticleIn: The Canadian field-naturalistVolume: 82Series:Issue: 1Date: 1968Page Range: 24--31Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects: