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  1. By: Rosenfield, R N
    Type: Article
    In: Raptor research
    Volume: 16
    Issue: 2
    Date: 1982
    Page Range: 63--63
    Publication Info: Vermillion, S.D, Raptor Research Foundation, [1972-1986]
  2. By: Rosenfield, R N
    Type: Article
    In: Raptor research
    Volume: 18
    Issue: 1
    Date: 1984
    Page Range: 6--9
    Publication Info: Vermillion, S.D, Raptor Research Foundation, [1972-1986]
  3. By: Andersen, David E - Destefano, Stephen - Goldstein, Michael I. - Titus, Kimberly - Crocker-Bedford, D. Coleman - Keane, John J - Anthony, Robert G. - Rosenfield, R N
    Type: Article
    In: The journal of raptor research
    Volume: 39
    Issue: 3
    Date: 2005
    Page Range: 192--209
    Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-