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  1. By: Tordoff, Harrison B - Redig, Patrick T
    Type: Article
    In: The journal of raptor research
    Volume: 32
    Issue: 2
    Date: 1998
    Page Range: 184--184
    Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-
  2. By: Tordoff, Harrison B - Redig, Patrick T
    Type: Article
    In: The journal of raptor research
    Volume: 33
    Issue: 4
    Date: 1999
    Page Range: 326--328
    Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-
  3. By: Tordoff, Harrison B
    Type: Article
    In: The Wilson bulletin
    Volume: 66
    Issue: 4
    Date: 1954
    Page Range: 274--274
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
  4. By: Tordoff, Harrison B
    Type: Article
    In: The Wilson bulletin
    Volume: 62
    Issue: 1
    Date: 1950
    Page Range: 3--4
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
  5. By: Tordoff, Harrison B - Redig, Patrick T
    Type: Article
    In: The journal of raptor research
    Volume: 31
    Issue: 4
    Date: 1997
    Page Range: 339--346
    Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-
  6. By: Sweeney, S J - Redig, P T - Tordoff, Harrison B
    Type: Article
    In: The journal of raptor research
    Volume: 31
    Issue: 4
    Date: 1997
    Page Range: 347--352
    Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-
  7. By: Voight-Englund, J. - Martell, M - Tordoff, Harrison B - Redig, P T
    Type: Article
    In: The journal of raptor research
    Volume: 27
    Issue: 1
    Date: 1993
    Page Range: 84--84
    Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-
  8. By: Martell, M S - Englund, J V - Tordoff, Harrison B
    Type: Article
    In: The journal of raptor research
    Volume: 36
    Issue: 2
    Date: 2002
    Page Range: 91--96
    Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-