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By: Olson, Storrs L. - James, H FType: ArticleIn: Bulletin of the British Ornithologists' ClubVolume: 106Series:Issue:Date: 1986Page Range: 84--86Publication Info: London, British Ornithologists' Club, 1893-Subjects:
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By: Olson, Storrs L. - James, H FType: ArticleIn: Proceedings of the Biological Society of WashingtonVolume: 108Series:Issue:Date: 1995Page Range: 373--387Publication Info: Washington Biological Society of WashingtonSubjects:
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By: Olson, Storrs L. - James, H F - Meister, C AType: ArticleIn: Bulletin of the British Ornithologists' ClubVolume: 101Series:Issue:Date: 1981Page Range: 339--346Publication Info: London, British Ornithologists' Club, 1893-Subjects: