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  1. By: Gillespie, Graham E.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 105
    Issue: 1
    Date: 1991
    Page Range: 124--126
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Gillespie, Graham E. - Saunders, Mark W.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 108
    Issue: 3
    Date: 1994
    Page Range: 347--350
    Publication Info: Ottawa Ottawa Field-Naturalists' Club