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By: Macdonald, M AType: ArticleIn: Bulletin of the British Ornithologists' ClubVolume: 100Series:Issue:Date: 1980Page Range: 170--172Publication Info: London, British Ornithologists' Club, 1893-Subjects:
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By: Taylor, I. R. - Macdonald, M AType: ArticleIn: Bulletin of the British Ornithologists' ClubVolume: 99Series:Issue:Date: 1979Page Range: 29--30Publication Info: London, British Ornithologists' Club, 1893-Subjects:
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By: Macdonald, M A - Newby, J EType: ArticleIn: Bulletin of the British Ornithologists' ClubVolume: 91Series:Issue:Date: 1971Page Range: 92--93Publication Info: London, British Ornithologists' Club, 1893-Subjects: