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By: Catling, Paul M. - Freedman, W.Type: ArticleIn: The Canadian field-naturalistVolume: 91Series:Issue: 4Date: 1977Page Range: 397--399Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Freedman, W. - Catling, Paul M.Type: ArticleIn: The Canadian field-naturalistVolume: 92Series:Issue: 2Date: 1978Page Range: 167--173Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects: