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  1. By: Whitfield, Douglas W. A. - Gerrard, Jonathan M. - Maher, William J - Davis, D. Wayne
    Type: Article
    In: The Canadian field-naturalist
    Volume: 88
    Issue: 4
    Date: 1974
    Page Range: 399--407
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Davis, D. Wayne - Sealander, John A
    Type: Article
    In: The Canadian field-naturalist
    Volume: 85
    Issue: 4
    Date: 1971
    Page Range: 303--308
    Publication Info: Ottawa Ottawa Field-Naturalists' Club