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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Thomson, A. Landsborough (Arthur Landsborough),
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 85
    Date: 1965
    Page Range: 117--119
    Publication Info: London, British Ornithologists' Club, 1893-
  2. By: Thomson, A. Landsborough (Arthur Landsborough),
    Type: Article
    In: Ibis
    Volume: 3
    Series: 11
    Issue: 3
    Date: 1921
    Page Range: 466--527
    Publication Info: [London], Published for the British Ornithologists' Union by Academic Press,