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  1. By: Postupalsky, S - Holt, J B
    Type: Article
    In: Raptor research
    Volume: 9
    Issue: 1/2
    Date: 1975
    Page Range: 18--20
    Publication Info: Vermillion, S.D, Raptor Research Foundation, [1972-1986]
  2. By: Bowerman, William W. - Holt, J B
    Type: Article
    In: The journal of raptor research
    Volume: 25
    Issue: 3
    Date: 1991
    Page Range: 96--96
    Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-
  3. By: Holt, J B
    Type: Article
    In: The journal of raptor research
    Volume: 30
    Issue: 4
    Date: 1996
    Page Range: 194--197
    Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-
  4. By: Dykstra, C R - Hays, J L - Simon, M M - Holt, J B - Austing, G. Ronald - Daniel, F. Bernard
    Type: Article
    In: The journal of raptor research
    Volume: 38
    Issue: 4
    Date: 2004
    Page Range: 304--311
    Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-