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  1. By: Larivière, Serge - Walton, Lyle R. - Virgl, John A.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 114
    Issue: 1
    Date: 2000
    Page Range: 142--144
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Walton, Lyle R. - Larivière, Serge
    Type: Article
    In: The Canadian field-naturalist
    Volume: 108
    Issue: 4
    Date: 1994
    Page Range: 492--493
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  3. By: Larivière, Serge - Walton, Lyle R. - Messier, François
    Type: Article
    In: The Canadian field-naturalist
    Volume: 120
    Issue: 3
    Date: 2006-07-01
    Page Range: 342--346
    Publication Info: Ottawa Ottawa Field-Naturalists' Club