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  1. By: Binford, Laurence C - Elliott, Bruce G - Singer, Steven W
    Type: Article
    In: The Wilson bulletin
    Volume: 87
    Issue: 3
    Date: 1975
    Page Range: 303--319
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
  2. By: Elliott, Bruce G
    Type: Article
    In: The Wilson bulletin
    Volume: 81
    Issue: 2
    Date: 1969
    Page Range: 184--195
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-