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By: Ross, David A. - Brewster, Kevin N. - Anderson, Raymond K - Ratner, Nancy - Brewster, Catherine M.Type: ArticleIn: The Canadian field-naturalistVolume: 105Series:Issue: 3Date: 1991Page Range: 363--367Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Belant, Jerrold L. - Anderson, Raymond KType: ArticleIn: The Canadian field-naturalistVolume: 105Series:Issue: 3Date: 1991Page Range: 372--375Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Belant, Jerrold L. - Anderson, Raymond KType: ArticleIn: The Canadian field-naturalistVolume: 105Series:Issue: 1Date: 1991Page Range: 29--33Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Gratson, Michael W. - Toepfer, John E. - Anderson, Raymond KType: ArticleIn: The Canadian field-naturalistVolume: 104Series:Issue: 4Date: 1990Page Range: 561--566Publication Info: Ottawa Ottawa Field-Naturalists' ClubSubjects:
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By: Stout, William E - Anderson, Raymond K - Papp, Joseph MType: ArticleIn: The journal of raptor researchVolume: 32Series:Issue: 3Date: 1998Page Range: 221--228Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects: