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  1. By: Toland, Brian R.
    Type: Article
    In: The journal of raptor research
    Volume: 21
    Issue: 1
    Date: 1987
    Page Range: 14--20
    Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-
  2. By: Toland, Brian R.
    Type: Article
    In: The Wilson bulletin
    Volume: 98
    Issue: 1
    Date: 1986
    Page Range: 116--125
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
  3. By: Toland, Brian R.
    Type: Article
    In: Raptor research
    Volume: 19
    Issue: 4
    Date: 1985
    Page Range: 146--148
    Publication Info: Vermillion, S.D, Raptor Research Foundation, [1972-1986]
  4. By: Toland, Brian R.
    Type: Article
    In: Raptor research
    Volume: 18
    Issue: 3
    Date: 1984
    Page Range: 107--110
    Publication Info: Vermillion, S.D, Raptor Research Foundation, [1972-1986]