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By: Sutherland, James M.Type: ArticleIn: The Canadian field-naturalistVolume: 105Series:Issue: 2Date: 1991Page Range: 267--273Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Sutherland, James M.Type: ArticleIn: The Canadian field-naturalistVolume: 101Series:Issue: 4Date: 1997Page Range: 601--603Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects: