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By: Fraser, Michael,Type: ArticleIn: Bulletin of the British Ornithologists' ClubVolume: 104Series:Issue:Date: 1984Page Range: 154--155Publication Info: London, British Ornithologists' Club, 1893-Subjects:
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By: Fraser, Michael, - Briggs, D. J.Type: ArticleIn: Bulletin of the British Ornithologists' ClubVolume: 112Series:Issue:Date: 1992Page Range: 191--205Publication Info: London, British Ornithologists' Club, 1893-Subjects:
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By: Fraser, Michael, - Dean, W. Richard J. (William Richard John), - Best, I. C.Type: ArticleIn: Bulletin of the British Ornithologists' ClubVolume: 112Series:Issue:Date: 1992Page Range: 12--22Publication Info: London, British Ornithologists' Club, 1893-Subjects:
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By: Underhill, Leslie G. - Underhill, George D. - Martin, Colin G C - Fraser, Michael,Type: ArticleIn: Bulletin of the British Ornithologists' ClubVolume: 115Series:Issue:Date: 1995Page Range: 229--234Publication Info: London, British Ornithologists' Club, 1893-Subjects: