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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Wilson, R. T.
    Publication info: London, Darton, 1867
    Holding Institution: University of Toronto - Thomas Fisher Rare Book Library
  1. By: Wilson, R. T. - Ball, D. M.
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 99
    Date: 1979
    Page Range: 15--20
    Publication Info: London, British Ornithologists' Club, 1893-