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By: Alvo, Robert - Campbell, DouglasType: ArticleIn: The Canadian field-naturalistVolume: 114Series:Issue: 4Date: 2000Page Range: 700--702Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: De Solla, Shane R. - Campbell, Douglas - Bishop, Christine AType: ArticleIn: The Canadian field-naturalistVolume: 115Series:Issue: 3Date: 2001Page Range: 510--512Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects: