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By: Field, G. D. (Geoffrey Dingley) - Owen, D FType: ArticleIn: Bulletin of the British Ornithologists' ClubVolume: 89Series:Issue:Date: 1969Page Range: 94--94Publication Info: London, British Ornithologists' Club, 1893-Subjects:
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By: Field, G. D. (Geoffrey Dingley)Type: ArticleIn: Bulletin of the British Ornithologists' ClubVolume: 99Series:Issue:Date: 1979Page Range: 57--59Publication Info: London, British Ornithologists' Club, 1893-Subjects:
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By: Field, G. D. (Geoffrey Dingley)Type: ArticleIn: Bulletin of the British Ornithologists' ClubVolume: 99Series:Issue:Date: 1979Page Range: 42--44Publication Info: London, British Ornithologists' Club, 1893-Subjects: