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  1. By: Kumlien, Ludwig
    Type: Article
    In: The Auk
    Volume: 14
    Date: 1897
    Page Range: 340--342
    Publication Info: Washington, D.C, American Ornithologists' Union, etc, 1884-
  2. By: Kumlien, Ludwig
    Type: Article
    In: The Auk
    Volume: 5
    Date: 1888
    Page Range: 325--328
    Publication Info: Washington, D.C, American Ornithologists' Union, etc, 1884-
  3. By: Kumlien, Ludwig
    Type: Article
    In: The Auk
    Volume: 5
    Date: 1888
    Page Range: 434--435
    Publication Info: Washington, D.C, American Ornithologists' Union, etc, 1884-