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  1. By: Lang, Anthony L. - Andress, R. A. (Bud) - Martin, Pamela A.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 113
    Issue: 4
    Date: 1999
    Page Range: 621--626
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Lang, Anthony L.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 105
    Issue: 4
    Date: 1991
    Page Range: 530--541
    Publication Info: Ottawa Ottawa Field-Naturalists' Club