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By: Clement, Peter,Type: ArticleIn: Bulletin of the African Bird ClubVolume: 6Series:Issue: 1Date: 1999-03Page Range: 17--24Publication Info: Cambridge, African Bird Club, 1994-Subjects:
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By: Clement, Peter,Type: ArticleIn: Bulletin of the African Bird ClubVolume: 4Series:Issue: 2Date: 1997-09Page Range: 106--109Publication Info: Cambridge, African Bird Club, 1994-Subjects:
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By: Clement, Peter, - Holman, DavidType: ArticleIn: Bulletin of the British Ornithologists' ClubVolume: 121Series:Issue:Date: 2001Page Range: 222--230Publication Info: London, British Ornithologists' Club, 1893-Subjects: