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By: Hughes, R AType: ArticleIn: Bulletin of the British Ornithologists' ClubVolume: 108Series:Issue:Date: 1988Page Range: 29--43Publication Info: London, British Ornithologists' Club, 1893-Subjects:
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By: Hughes, R AType: ArticleIn: Bulletin of the British Ornithologists' ClubVolume: 112Series:Issue:Date: 1992Page Range: 132--133Publication Info: London, British Ornithologists' Club, 1893-Subjects: