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By: Sørensen, Uffe Gjol - Bech, Jorgen - Krabbe, ErlingType: ArticleIn: Bulletin of the British Ornithologists' ClubVolume: 116Series:Issue:Date: 1996Page Range: 145--155Publication Info: London, British Ornithologists' Club, 1893-Subjects:
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By: Sørensen, Uffe Gjol - Bech, Jorgen - Halberg, Kaj - Krabbe, ErlingType: ArticleIn: Bulletin of the African Bird ClubVolume: 4Series:Issue: 1Date: 1997-03Page Range: 29--30Publication Info: Cambridge, African Bird Club, 1994-Subjects: