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  1. By: Baydack, Richard K.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 102
    Issue: 1
    Date: 1988
    Page Range: 39--44
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Berger, Robert P. - Baydack, Richard K.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 106
    Issue: 2
    Date: 1992
    Page Range: 185--191
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  3. By: Uhmann, Tanys V. - Kenkel, Norm C - Baydack, Richard K.
    Type: Article
    In: The journal of raptor research
    Volume: 35
    Issue: 4
    Date: 2001
    Page Range: 378--384
    Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-