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  1. By: Robards, Martin D. - Gilchrist, H. Grant - Allard, Karel
    Type: Article
    In: The Canadian field-naturalist
    Volume: 114
    Issue: 1
    Date: 2000
    Page Range: 72--77
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Kay, Maureen F. - Gilchrist, H. Grant
    Type: Article
    In: The Canadian field-naturalist
    Volume: 112
    Issue: 3
    Date: 1998
    Page Range: 529--532
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  3. By: Hipfner, J. Mark - Gilchrist, H. Grant - Gaston, Anthony J - Cairns, David
    Type: Article
    In: The Canadian field-naturalist
    Volume: 116
    Issue: 1
    Date: 2002
    Page Range: 22--25
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  4. By: Robertson, G J - Gilchrist, H. Grant
    Type: Article
    In: The journal of raptor research
    Volume: 37
    Issue: 2
    Date: 2003
    Page Range: 164--166
    Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-