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By: Keats, Derek W - South, G R - Steele, Donald H.Type: ArticleIn: The Canadian field-naturalistVolume: 100Series:Issue: 4Date: 1986Page Range: 556--558Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Keats, Derek W - Hooper, Robert G - Steele, Donald H. - South, G RType: ArticleIn: The Canadian field-naturalistVolume: 101Series:Issue: 3Date: 1997Page Range: 463--465Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects: