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By: Bayne, Erin M. - Hobson, Keith AType: ArticleIn: The Wilson bulletinVolume: 114Series:Issue: 3Date: 2002Page Range: 358--367Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-Subjects:
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By: Cumming, Enid E. - Hobson, Keith A - Van Wilgenburg, Steven L.Type: ArticleIn: The Canadian field-naturalistVolume: 115Series:Issue: 3Date: 2001Page Range: 425--435Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Dion, Nancy - Hobson, Keith A - Larivière, SergeType: ArticleIn: The Canadian field-naturalistVolume: 117Series:Issue: 3Date: 2003-07-01Page Range: 347--351Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Hobson, Keith A - Bayne, Erin M.Type: ArticleIn: The Wilson bulletinVolume: 112Series:Issue: 3Date: 2000Page Range: 373--387Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-Subjects: