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By: Chubbs, Tony E. - Trimper, Perry G.Type: ArticleIn: The Canadian field-naturalistVolume: 112Series:Issue: 3Date: 1998Page Range: 502--505Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Chubbs, Tony E. - Mactavish, Bruce - Oram, Keith - Trimper, Perry G.Type: ArticleIn: The journal of raptor researchVolume: 34Series:Issue: 1Date: 2000Page Range: 56--57Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects:
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By: Chubbs, Tony E. - Mactavish, Bruce - Trimper, Perry G.Type: ArticleIn: The Canadian field-naturalistVolume: 114Series:Issue: 2Date: 2000Page Range: 324--326Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Chubbs, Tony E. - Mactavish, Bruce - Oram, Keith - Trimper, Perry G. - Knox, Kathy - Goudie, R. IanType: ArticleIn: The Canadian field-naturalistVolume: 115Series:Issue: 1Date: 2001Page Range: 177--179Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects: