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  1. By: Boonstra, Rudy - Sinclair, Anthony R. E.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 98
    Issue: 1
    Date: 1984
    Page Range: 12--21
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Hoyle, James A. - Boonstra, Rudy
    Type: Article
    In: The Canadian field-naturalist
    Volume: 100
    Issue: 4
    Date: 1986
    Page Range: 537--544
    Publication Info: Ottawa Ottawa Field-Naturalists' Club