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  1. By: Bogart, James P., - Light, Lawrence E.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 101
    Issue: 3
    Date: 1997
    Page Range: 434--436
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Light, Lawrence E.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 100
    Issue: 1
    Date: 1986
    Page Range: 22--31
    Publication Info: Ottawa Ottawa Field-Naturalists' Club