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  1. By: Eberhardt, Lester E. - Garrott, Robert A. - Hanson, Wayne C.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 97
    Issue: 1
    Date: 1983
    Page Range: 66--70
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Eberhardt, Lester E. - Hanson, Wayne C.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 92
    Issue: 4
    Date: 1978
    Page Range: 386--389
    Publication Info: Ottawa Ottawa Field-Naturalists' Club