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  1. By: Bosakowski, Thomas - Smith, Dwight G - Speiser, Robert
    Type: Article
    In: The Canadian field-naturalist
    Volume: 106
    Issue: 4
    Date: 1992
    Page Range: 474--479
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Bosakowski, Thomas - Speiser, Robert - Smith, Dwight G
    Type: Article
    In: The Canadian field-naturalist
    Volume: 103
    Issue: 1
    Date: 1989
    Page Range: 65--69
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  3. By: Bosakowski, Thomas - Smith, Dwight G - Speiser, Robert
    Type: Article
    In: The Wilson bulletin
    Volume: 104
    Issue: 3
    Date: 1992
    Page Range: 434--446
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-