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  1. By: Bjorge, Ronald R.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 101
    Issue: 3
    Date: 1997
    Page Range: 346--350
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Bjorge, Ronald R. - Gunson, J. R. - Samuel, W. M. (William Morris),
    Type: Article
    In: The Canadian field-naturalist
    Volume: 95
    Issue: 2
    Date: 1981
    Page Range: 149--155
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  3. By: Bjorge, Ronald R. - Prescott, David R. C. (David Robert Charles)
    Type: Article
    In: The Canadian field-naturalist
    Volume: 110
    Issue: 3
    Date: 1996
    Page Range: 445--449
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  4. By: Gunson, J. R. - Bjorge, Ronald R.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 93
    Issue: 3
    Date: 1979
    Page Range: 252--258
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  5. By: Bjorge, Ronald R. - Gunson, J. R.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 103
    Issue: 3
    Date: 1989
    Page Range: 327--334
    Publication Info: Ottawa Ottawa Field-Naturalists' Club