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By: Goodman, Steven M. - Houlihan, P FType: ArticleIn: Bulletin of the British Ornithologists' ClubVolume: 101Series:Issue:Date: 1981Page Range: 334--336Publication Info: London, British Ornithologists' Club, 1893-Subjects:
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By: Goodman, Steven M. - Houlihan, P F - Helmy, IType: ArticleIn: Bulletin of the British Ornithologists' ClubVolume: 104Series:Issue:Date: 1984Page Range: 39--44Publication Info: London, British Ornithologists' Club, 1893-Subjects: