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  1. By: Suthers, Roderick A
    Type: Article
    In: The Wilson bulletin
    Volume: 72
    Issue: 3
    Date: 1960
    Page Range: 232--237
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
  2. By: Griffin, Donald R. (Donald Redfield), - Suthers, Roderick A
    Type: Article
    In: The Biological bulletin
    Volume: 139
    Date: 1970-12-01
    Page Range: 495--501
    Publication Info: Woods Hole, Mass Marine Biological Laboratory