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  1. By: Ryan, Peter G - Cuthbert, Richard J.
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 128
    Date: 2008
    Page Range: 242--253
    Publication Info: London, British Ornithologists' Club, 1893-
  2. By: Cohen, Callan - Ryan, Peter G - Claasen, Marcell - Ntoyinka, Claver
    Type: Article
    In: Bulletin of the African Bird Club
    Volume: 17
    Issue: 2
    Date: 2010-09
    Page Range: 229--238
    Publication Info: Cambridge, African Bird Club, 1994-
  3. By: Sinclair, Ian - Spottiswoode, Claire N - Cohen, Callan - Mills, Michael Stuart Lyne - Cassidy, Rodney - Vaz Pinto, Pedro - Ryan, Peter G
    Type: Article
    In: Bulletin of the African Bird Club
    Volume: 11
    Issue: 2
    Date: 2004-08
    Page Range: 152--160
    Publication Info: Cambridge, African Bird Club, 1994-
  4. By: Ryan, Peter G
    Type: Article
    In: Bulletin of the African Bird Club
    Volume: 9
    Issue: 1
    Date: 2002-03
    Page Range: 43--44
    Publication Info: Cambridge, African Bird Club, 1994-
  5. By: Ryan, Peter G
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 109
    Date: 1989
    Page Range: 147--149
    Publication Info: London, British Ornithologists' Club, 1893-
  6. By: Ryan, Peter G
    Type: Article
    In: Bulletin of the African Bird Club
    Volume: 17
    Issue: 2
    Date: 2010-09
    Page Range: 217--219
    Publication Info: Cambridge, African Bird Club, 1994-
  7. By: Ryan, Peter G
    Type: Article
    In: Bulletin of the African Bird Club
    Volume: 22
    Issue: 1
    Date: 2015-03
    Page Range: 84--85
    Publication Info: Cambridge, African Bird Club, 1994-
  8. By: Ryan, Peter G - Nupen, Lisa - Rose, Barrie - Suleiman, Ahmed Saeed
    Type: Article
    In: Bulletin of the British Ornithologists' Club
    Volume: 130
    Date: 2010
    Page Range: 75--82
    Publication Info: London, British Ornithologists' Club, 1893-
  9. By: Ryan, Peter G - Sinclair, Ian
    Type: Article
    In: Bulletin of the African Bird Club
    Volume: 5
    Issue: 1
    Date: 1998-03
    Page Range: 56--57
    Publication Info: Cambridge, African Bird Club, 1994-
  10. By: Hockey, Par - Bosman, Alison L. - Ryan, Peter G
    Type: Article
    In: The veliger
    Volume: 30
    Date: 1987
    Page Range: 5--10
    Publication Info: Berkeley, CA, California Malacozoological Society,
  11. By: Ryan, Peter G - Graham, John - Sutherland, Andrew C
    Type: Article
    In: Bulletin of the African Bird Club
    Volume: 13
    Issue: 2
    Date: 2006-08
    Page Range: 197--204
    Publication Info: Cambridge, African Bird Club, 1994-
  12. By: Ryan, Peter G
    Type: Article
    In: Bulletin of the African Bird Club
    Volume: 20
    Issue: 2
    Date: 2013-09
    Page Range: 236--237
    Publication Info: Cambridge, African Bird Club, 1994-
  13. By: Visser, Paul - Louw, Henk - Cuthbert, Richard J. - Ryan, Peter G
    Type: Article
    In: Bulletin of the African Bird Club
    Volume: 16
    Issue: 2
    Date: 2009-09
    Page Range: 215--216
    Publication Info: Cambridge, African Bird Club, 1994-
  14. By: Ryan, Peter G
    Type: Article
    In: Bulletin of the African Bird Club
    Volume: 16
    Issue: 1
    Date: 2009-03
    Page Range: 67--77
    Publication Info: Cambridge, African Bird Club, 1994-
  15. By: Ryan, Peter G - Spottiswoode, Claire N - Parker, Vincent - Graham, John - Cohen, Callan - Bento, Carlos
    Type: Article
    In: Bulletin of the African Bird Club
    Volume: 6
    Issue: 2
    Date: 1999-09
    Page Range: 138--143
    Publication Info: Cambridge, African Bird Club, 1994-