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By: Ulfstrand, Staffan,Type: ArticleIn: Bulletin of the British Ornithologists' ClubVolume: 80Series:Issue:Date: 1960Page Range: 2--3Publication Info: London, British Ornithologists' Club, 1893-Subjects:
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By: Ulfstrand, Staffan,Type: ArticleIn: Bulletin of the British Ornithologists' ClubVolume: 80Series:Issue:Date: 1960Page Range: 11--13Publication Info: London, British Ornithologists' Club, 1893-Subjects:
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By: Ulfstrand, Staffan, - Lamprey, Hugh F.,Type: ArticleIn: Journal of The East Africa Natural History SocietyVolume: XXIIISeries:Issue: 6Date: 1960Page Range: 223-232Publication Info:Subjects: