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  1. By: Gray, Russell - Strine, Colin
    Type: Article
    In: ZooKeys
    Volume: 707
    Date: 2017
    Page Range: 131-165
    Publication Info: Pensoft Publishers 2017
  2. By: Gray, Russell
    Type: Article
    In: The Wilson bulletin
    Volume: 9
    Series: new
    Issue: 4
    Date: 1897
    Page Range: 29--29
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-