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  1. By: De Sá, Rafael O. (Rafael Omar) - Donnelly, Maureen A., 1954- - Guyer, Craig,
    Publication info: 1990
    Holding Institution: American Museum of Natural History Library
  2. By: Donnelly, Maureen A., - De Sá, Rafael O. (Rafael Omar) - Guyer, Craig,
    Publication info: New York, N.Y, American Museum of Natural History, c1990
    Holding Institution: American Museum of Natural History Library
  1. By: Ress, S - Guyer, Craig,
    Type: Article
    In: The journal of raptor research
    Volume: 38
    Issue: 1
    Date: 2004
    Page Range: 77--81
    Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-
  2. By: Donnelly, Maureen A., 1954- - Guyer, Craig, - Desa, R O
    Type: Article
    In: Proceedings of the Biological Society of Washington
    Volume: 103
    Date: 1990
    Page Range: 427--431
    Publication Info: Washington, Biological Society of Washington,
  3. By: Guyer, Craig, - Linder, A D
    Type: Article
    In: The Great Basin naturalist
    Volume: 45
    Date: 1985
    Page Range: 607--614
    Publication Info: Provo, Utah, M.L. Bean Life Science Museum, Brigham Young University,