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  1. By: Madigan, Gerard
    Type: Article
    In: The Canadian field-naturalist
    Volume: 91
    Issue: 4
    Date: 1977
    Page Range: 432--433
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Madigan, Gerard
    Type: Article
    In: The Canadian field-naturalist
    Volume: 91
    Issue: 3
    Date: 1977
    Page Range: 335--336
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  3. By: Madigan, Gerard
    Type: Article
    In: The Canadian field-naturalist
    Volume: 100
    Issue: 1
    Date: 1986
    Page Range: 157--157
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  4. By: Madigan, Gerard
    Type: Article
    In: The Canadian field-naturalist
    Volume: 100
    Issue: 1
    Date: 1986
    Page Range: 158--158
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  5. By: Madigan, Gerard
    Type: Article
    In: The Canadian field-naturalist
    Volume: 105
    Issue: 3
    Date: 1991
    Page Range: 438--439
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  6. By: Madigan, Gerard
    Type: Article
    In: The Canadian field-naturalist
    Volume: 89
    Issue: 3
    Date: 1975
    Page Range: 337--337
    Publication Info: Ottawa Ottawa Field-Naturalists' Club