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By: Peres, Carlos A - Whittaker, Andrew, (Ornithologist)Type: ArticleIn: Bulletin of the British Ornithologists' ClubVolume: 111Series:Issue:Date: 1991Page Range: 156--171Publication Info: London, British Ornithologists' Club, 1893-Subjects:
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By: Lees, Alexander C - Peres, Carlos AType: ArticleIn: Bulletin of the British Ornithologists' ClubVolume: 128Series:Issue:Date: 2008Page Range: 68--69Publication Info: London, British Ornithologists' Club, 1893-Subjects: