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  1. By: Sutton, George Miksch, - Pettingill, Olin Sewall, - Lea, Robert B
    Type: Article
    In: The Wilson bulletin
    Volume: 54
    Issue: 3
    Date: 1942
    Page Range: 199--203
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
  2. By: Lea, Robert B
    Type: Article
    In: The Wilson bulletin
    Volume: 54
    Issue: 4
    Date: 1942
    Page Range: 225--237
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-