-
By: Ryall, ColinType: ArticleIn: Bulletin of the British Ornithologists' ClubVolume: 115Series:Issue:Date: 1995Page Range: 185--187Publication Info: London, British Ornithologists' Club, 1893-Subjects:
-
By: Ryall, ColinType: ArticleIn: ScopusVolume: 18Series:Issue:Date: 1994Page Range: 34--39Publication Info: Nairobi, East Africa Natural History Society's Ornithological Sub-committee,Subjects:
-
By: Ryall, ColinType: ArticleIn: Bulletin of the British Ornithologists' ClubVolume: 136Series:Issue: 1Date: 2016Page Range: 39--45Publication Info: London, British Ornithologists' Club, 1893-Subjects:
-
By: Ryall, ColinType: ArticleIn: Bulletin of the British Ornithologists' ClubVolume: 130Series:Issue:Date: 2010Page Range: 246--254Publication Info: London, British Ornithologists' Club, 1893-Subjects:
-
By: Ryall, ColinType: ArticleIn: Bulletin of the British Ornithologists' ClubVolume: 122Series:Issue:Date: 2002Page Range: 231--240Publication Info: London, British Ornithologists' Club, 1893-Subjects:
-
By: Ryall, ColinType: ArticleIn: The journal of the Bombay Natural History SocietyVolume: 100Series:Issue:Date: 2003Page Range: 136--138Publication Info: Bombay Bombay Natural History Society 1886-Subjects:
-
By: Ryall, ColinType: ArticleIn: Bulletin of the British Ornithologists' ClubVolume: 114Series:Issue:Date: 1994Page Range: 90--100Publication Info: London, British Ornithologists' Club, 1893-Subjects:
-
By: Ryall, Colin - Briggs, KevinType: ArticleIn: Bulletin of the African Bird ClubVolume: 13Series:Issue: 1Date: 2006-03Page Range: 60--74Publication Info: Cambridge, African Bird Club, 1994-Subjects: