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  1. By: MacDonald, Peter R. N. - Austin-Smith, Peter J.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 103
    Issue: 2
    Date: 1989
    Page Range: 293--296
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Amirault, Diane Louise - Kierstead, Jonathan - MacDonald, Peter R. N. - MacDonnell, Larry
    Type: Article
    In: The Canadian field-naturalist
    Volume: 118
    Issue: 3
    Date: 2004-07-01
    Page Range: 444--446
    Publication Info: Ottawa Ottawa Field-Naturalists' Club