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  1. By: Ewins, Peter J. - Andress, R. A. (Bud)
    Type: Article
    In: The Canadian field-naturalist
    Volume: 109
    Issue: 4
    Date: 1995
    Page Range: 418--425
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Ewins, Peter J. - Andress, R. A. (Bud)
    Type: Article
    In: The Canadian field-naturalist
    Volume: 109
    Issue: 4
    Date: 1995
    Page Range: 426--432
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  3. By: Ewins, Peter J. - Hennessey, Bennett
    Type: Article
    In: The Canadian field-naturalist
    Volume: 106
    Issue: 4
    Date: 1992
    Page Range: 521--522
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  4. By: Ewins, Peter J. - Houston, C Stuart
    Type: Article
    In: The Canadian field-naturalist
    Volume: 106
    Issue: 3
    Date: 1992
    Page Range: 361--365
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  5. By: Martin, Pamela A. - De Solla, Shane R. - Ewins, Peter J. - Barker, Michael E.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 119
    Issue: 1
    Date: 2005-01-01
    Page Range: 58--63
    Publication Info: Ottawa Ottawa Field-Naturalists' Club