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  1. 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,
  2. By: Raja, N A - Davidson, Peter J. A. - Bean, Nigel - Drijvers, R - Showler, D A - Barker, Chris.
    Type: Article
    In: Forktail
    Volume: 15
    Date: 1999
    Page Range: 77--85
    Publication Info: Oxford,
  3. 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-
  4. By: Showler, D A - Davidson, Peter J. A.
    Type: Article
    In: Forktail
    Volume: 15
    Date: 1999
    Page Range: 67--76
    Publication Info: Oxford,
  5. By: Barker, Chris. - Bean, Nigel - Davidson, Peter J. A. - Drijvers, Raf - Showler, Dave
    Type: Article
    In: Forktail
    Volume: 15
    Date: 1999
    Page Range: 96--97
    Publication Info: Oxford,