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  1. By: Kirkley, John S
    Type: Article
    In: The journal of raptor research
    Volume: 25
    Issue: 3
    Date: 1991
    Page Range: 82--86
    Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-
  2. By: Kirkley, John S - Springer, M A
    Type: Article
    In: Raptor research
    Volume: 14
    Issue: 1
    Date: 1980
    Page Range: 22--28
    Publication Info: Vermillion, S.D, Raptor Research Foundation, [1972-1986]
  3. By: Kirkley, John S - Gessaman, James A
    Type: Article
    In: The Wilson bulletin
    Volume: 102
    Issue: 1
    Date: 1990
    Page Range: 71--83
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-