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By: Dibello, Fred J. - Arthur, Stephen M. - Krohn, William BType: ArticleIn: The Canadian field-naturalistVolume: 104Series:Issue: 3Date: 1990Page Range: 403--408Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Haegen, W Matthew Vander - Owen, Ray B - Krohn, William BType: ArticleIn: The Wilson bulletinVolume: 106Series:Issue: 2Date: 1994Page Range: 338--343Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-Subjects:
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By: Owen, Ray B - Krohn, William BType: ArticleIn: The Wilson bulletinVolume: 85Series:Issue: 1Date: 1973Page Range: 31--41Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-Subjects:
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By: Paragi, Thomas F. - Arthur, Stephen W. - Krohn, William BType: ArticleIn: The Canadian field-naturalistVolume: 108Series:Issue: 1Date: 1994Page Range: 52--57Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Krohn, William BType: ArticleIn: The Wilson bulletinVolume: 83Series:Issue: 4Date: 1971Page Range: 396--407Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-Subjects: