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  1. By: Sage, Bryan L.
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 89
    Date: 1969
    Page Range: 35--38
    Publication Info: London, British Ornithologists' Club, 1893-
  2. By: Sage, Bryan L.
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 86
    Date: 1966
    Page Range: 50--54
    Publication Info: London, British Ornithologists' Club, 1893-
  3. By: Sage, Bryan L.
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 84
    Date: 1964
    Page Range: 7--9
    Publication Info: London, British Ornithologists' Club, 1893-
  4. By: Sage, Bryan L.
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 85
    Date: 1965
    Page Range: 42--44
    Publication Info: London, British Ornithologists' Club, 1893-
  5. By: Sage, Bryan L.
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 87
    Date: 1967
    Page Range: 101--102
    Publication Info: London, British Ornithologists' Club, 1893-
  6. By: Sage, Bryan L.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 88
    Issue: 3
    Date: 1974
    Page Range: 281--291
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  7. By: Sage, Bryan L.
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 129
    Date: 2009
    Page Range: 77--86
    Publication Info: London, British Ornithologists' Club, 1893-
  8. By: Sage, Bryan L.
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 115
    Date: 1995
    Page Range: 68--68
    Publication Info: London, British Ornithologists' Club, 1893-
  9. By: Sage, Bryan L. - Lawson, T R
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 81
    Date: 1961
    Page Range: 49--50
    Publication Info: London, British Ornithologists' Club, 1893-
  10. By: Sage, Bryan L.
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 117
    Date: 1997
    Page Range: 239--240
    Publication Info: London, British Ornithologists' Club, 1893-
  11. By: Sage, Bryan L.
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 84
    Date: 1964
    Page Range: 25--30
    Publication Info: London, British Ornithologists' Club, 1893-
  12. By: Sage, Bryan L.
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 84
    Date: 1964
    Page Range: 149--152
    Publication Info: London, British Ornithologists' Club, 1893-
  13. By: Sage, Bryan L.
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 89
    Date: 1969
    Page Range: 69--71
    Publication Info: London, British Ornithologists' Club, 1893-
  14. By: Sage, Bryan L.
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 83
    Date: 1963
    Page Range: 161--164
    Publication Info: London, British Ornithologists' Club, 1893-
  15. By: Sage, Bryan L.
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 82
    Date: 1962
    Page Range: 55--60
    Publication Info: London, British Ornithologists' Club, 1893-
  16. By: Sage, Bryan L.
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 80
    Date: 1960
    Page Range: 80--86
    Publication Info: London, British Ornithologists' Club, 1893-
  17. By: Sage, Bryan L.
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 83
    Date: 1963
    Page Range: 75--77
    Publication Info: London, British Ornithologists' Club, 1893-