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  1. By: Borrett, R. P. - Jackson, H D
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 90
    Date: 1970
    Page Range: 124--129
    Publication Info: London, British Ornithologists' Club, 1893-
  2. By: Jackson, H D
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 105
    Date: 1985
    Page Range: 51--54
    Publication Info: London, British Ornithologists' Club, 1893-
  3. By: Jackson, H D
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 135
    Issue: 3
    Date: 2015
    Page Range: 247--266
    Publication Info: London, British Ornithologists' Club, 1893-
  4. By: Jackson, H D
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 134
    Issue: 1
    Date: 2014
    Page Range: 62--69
    Publication Info: London, British Ornithologists' Club, 1893-
  5. By: Jackson, H D
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 133
    Issue: 2
    Date: 2013
    Page Range: 116--124
    Publication Info: London, British Ornithologists' Club, 1893-
  6. By: Jackson, H D
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 109
    Date: 1989
    Page Range: 100--106
    Publication Info: London, British Ornithologists' Club, 1893-