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By: Johnson, E D H - Farnsworth, S. JohnType: ArticleIn: Bulletin of the British Ornithologists' ClubVolume: 110Series:Issue:Date: 1990Page Range: 7--9Publication Info: London, British Ornithologists' Club, 1893-Subjects:
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By: Farnsworth, S. John - Coomber, Richard F - Jones, Phil - Madge, Steve C - Webb, Richard - Witherick, MikeType: ArticleIn: Bulletin of the African Bird ClubVolume: 7Series:Issue: 1Date: 2000-03Page Range: 34--46Publication Info: Cambridge, African Bird Club, 1994-Subjects: