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By: Herzog, Sebastian K - Kessler, Michael - Maijer, Sjoerd - Hohnwald, StefanType: ArticleIn: Bulletin of the British Ornithologists' ClubVolume: 117Series:Issue:Date: 1997Page Range: 223--235Publication Info: London, British Ornithologists' Club, 1893-Subjects:
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By: Herzog, Sebastian K - Fjeldså, Jon - Kessler, Michael - Balderrama, José AType: ArticleIn: Bulletin of the British Ornithologists' ClubVolume: 119Series:Issue:Date: 1999Page Range: 162--177Publication Info: London, British Ornithologists' Club, 1893-Subjects:
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By: Herzog, Sebastian KType: ArticleIn: Bulletin of the British Ornithologists' ClubVolume: 121Series:Issue:Date: 2001Page Range: 273--277Publication Info: London, British Ornithologists' Club, 1893-Subjects:
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By: Herzog, Sebastian K - Soria A., Rodrigo - Matthysen, ErikType: ArticleIn: The Wilson bulletinVolume: 115Series:Issue: 4Date: 2003Page Range: 438--447Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-Subjects: