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  1. By: Duckworth, J W - Tizard, R. J. - Timmins, R. J. - Thewlis, Richard M. - Robichaud, W G - Evans, Tom D.
    Type: Article
    In: Forktail
    Volume: 13
    Date: 1998
    Page Range: 33--68
    Publication Info: Oxford,
  2. By: Duckworth, J W - Davidson, Peter J. A. - Evans, Tom D. - Round, P D - Timmins, R. J.
    Type: Article
    In: Forktail
    Volume: 18
    Date: 2002
    Page Range: 11--44
    Publication Info: Oxford,
  3. By: Safford, Roger - Duckworth, J W - Evans, Michael I. - Telfer, Mark G. - Timmins, R. J. - Zewdie, Chemere
    Type: Article
    In: Scopus
    Volume: 16
    Date: 1993
    Page Range: 61--80
    Publication Info: Nairobi, East Africa Natural History Society's Ornithological Sub-committee,
  4. By: Duckworth, J W
    Type: Article
    In: Forktail
    Volume: 20
    Date: 2004
    Page Range: 116--120
    Publication Info: Oxford,
  5. By: Duckworth, J W
    Type: Article
    In: Forktail
    Volume: 25
    Date: 2009
    Page Range: 96--103
    Publication Info: Oxford,
  6. By: Duckworth, J W - Evans, Tom D.
    Type: Article
    In: The Wilson journal of ornithology
    Volume: 119
    Issue: 2
    Date: 2007
    Page Range: 253--258
    Publication Info: Lawrence, KS, Wilson Ornithological Society, 2006-
  7. By: Duckworth, J W - Alström, Per
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 124
    Date: 2004
    Page Range: 290--292
    Publication Info: London, British Ornithologists' Club, 1893-
  8. By: Duckworth, J W - Alström, Per - Davidson, Peter J. A. - Evans, Tom D. - Poole, Colin M. - Setha, Tan - Timmins, R. J.
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 121
    Date: 2001
    Page Range: 152--182
    Publication Info: London, British Ornithologists' Club, 1893-
  9. By: Duckworth, J W
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 117
    Date: 1997
    Page Range: 210--220
    Publication Info: London, British Ornithologists' Club, 1893-
  10. By: Duckworth, J W
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 126
    Date: 2006
    Page Range: 252--290
    Publication Info: London, British Ornithologists' Club, 1893-
  11. By: Sheldon, B C - Duckworth, J W
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 110
    Date: 1990
    Page Range: 126--130
    Publication Info: London, British Ornithologists' Club, 1893-
  12. By: Duckworth, J W - Hedges, S
    Type: Book
    In: Tracking tigers : a review of the status of tiger, Asian elephant, gaur, and banteng in Vietnam, Lao, Cambodia, and Yunnan (China), with recommendations for future conservation action
    Date: 1998
    Page Range: 1--282
    Publication Info: Hanoi, WWF Indochina Programme, 1998
  13. By: Woxvold, Iain A. - Duckworth, J W - Timmins, R. J.
    Type: Article
    In: Forktail
    Volume: 25
    Date: 2009
    Page Range: 1--12
    Publication Info: Oxford,
  14. By: Duckworth, J W - Round, P D - Tizard, R. J.
    Type: Article
    In: Forktail
    Volume: 27
    Date: 2011
    Page Range: 11--14
    Publication Info: Oxford,