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  1. By: Reid, Donald G. - Bayer, Max B. - Code, Thomas E. - McLean, Bruce
    Type: Article
    In: The Canadian field-naturalist
    Volume: 101
    Issue: 4
    Date: 1997
    Page Range: 576--580
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Yarmoloy, Cornel - Bayer, Max B. - Geist, Valerius
    Type: Article
    In: The Canadian field-naturalist
    Volume: 102
    Issue: 3
    Date: 1988
    Page Range: 425--429
    Publication Info: Ottawa Ottawa Field-Naturalists' Club