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By: Tingay, Ruth E - Gilbert, MartinType: ArticleIn: Bulletin of the African Bird ClubVolume: 7Series:Issue: 2Date: 2000-09Page Range: 111--113Publication Info: Cambridge, African Bird Club, 1994-Subjects:
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By: Tingay, Ruth E - Culver, Melanie - Hallerman, Eric M. - Fraser, James D - Watson, Richard T.Type: ArticleIn: The journal of raptor researchVolume: 36Series:Issue: 4Date: 2002Page Range: 280--286Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects:
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By: Tingay, Ruth E - Clarke, M L - Watson, Richard T. - Thorstrom, Russell - Kalavah, LoukmanType: ArticleIn: The journal of raptor researchVolume: 38Series:Issue: 1Date: 2004Page Range: 85--88Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects: