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  1. By: Simmons, K E L
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 82
    Date: 1962
    Page Range: 92--94
    Publication Info: London, British Ornithologists' Club, 1893-
  2. By: Simmons, K E L
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 88
    Date: 1968
    Page Range: 15--20
    Publication Info: London, British Ornithologists' Club, 1893-
  3. By: Simmons, K E L
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 82
    Date: 1962
    Page Range: 109--116
    Publication Info: London, British Ornithologists' Club, 1893-
  4. By: Simmons, K E L
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 110
    Date: 1990
    Page Range: 213--222
    Publication Info: London, British Ornithologists' Club, 1893-