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  1. By: Abbott, W L
    Type: Article
    In: Proceedings of the United States National Museum.
    Volume: 16
    Issue: 973
    Date: 1894
    Page Range: 759--764
    Publication info: Washington :Smithsonian Institution Press, [etc.]
  2. By: Ridgway, Robert, - Abbott, W L
    Type: Article
    In: The Auk.
    Volume: 12
    Date: 1895
    Page Range: 70--71
    Publication info: Washington, D.C. :American Ornithologists' Union, etc.,1884-