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By: Kirwan, Guy M - Sharpe, Christopher JType: ArticleIn: Bulletin of the British Ornithologists' ClubVolume: 119Series:Issue:Date: 1999Page Range: 38--47Publication Info: London, British Ornithologists' Club, 1893-Subjects:
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By: Perez-Eman, Jorge - Sharpe, Christopher J - Lentino R., Miguel - Prum, Richard O. - Carreño F., Irving J.Type: ArticleIn: Bulletin of the British Ornithologists' ClubVolume: 123Series:Issue:Date: 2003Page Range: 78--90Publication Info: London, British Ornithologists' Club, 1893-Subjects:
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By: Sharpe, Christopher J - Rodriguez, Gustavo AType: ArticleIn: Bulletin of the British Ornithologists' ClubVolume: 121Series:Issue:Date: 2001Page Range: 50--62Publication Info: London, British Ornithologists' Club, 1893-Subjects: