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  1. By: Campbell, R. Wayne - Shepard, Michael G.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 87
    Issue: 2
    Date: 1973
    Page Range: 179--180
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Campbell, R. Wayne - Ward, John R - Shepard, Michael G.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 89
    Issue: 3
    Date: 1975
    Page Range: 244--248
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  3. By: Weber, Wayne C - Shepard, Michael G.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 89
    Issue: 3
    Date: 1975
    Page Range: 318--319
    Publication Info: Ottawa Ottawa Field-Naturalists' Club