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  1. By: Kantrud, Harold A.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 95
    Issue: 4
    Date: 1981
    Page Range: 404--417
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Igl, Lawrence D - Johnson, Douglas H - Kantrud, Harold A.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 113
    Issue: 4
    Date: 1999
    Page Range: 646--651
    Publication Info: Ottawa Ottawa Field-Naturalists' Club