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  1. By: Van Dyke, Fred,
    Type: Article
    In: The Canadian field-naturalist
    Volume: 121
    Issue: 2
    Date: 2007-04-01
    Page Range: 133--141
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Van Dyke, Fred,
    Type: Article
    In: Raptor research
    Volume: 15
    Issue: 4
    Date: 1981
    Page Range: 122--122
    Publication Info: Vermillion, S.D, Raptor Research Foundation, [1972-1986]