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By: Hunter, P - Mahony, N A - Ewins, P J - Baird, D. - Field, MType: ArticleIn: The journal of raptor researchVolume: 31Series:Issue: 4Date: 1997Page Range: 321--326Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects:
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By: Ewins, P JType: ArticleIn: The journal of the Bombay Natural History SocietyVolume: 80Series:Issue:Date: 1983Page Range: 413--414Publication Info: Bombay Bombay Natural History Society 1886-Subjects:
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By: Ewins, P JType: ArticleIn: The journal of raptor researchVolume: 31Series:Issue: 2Date: 1997Page Range: 138--150Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects:
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By: De Solla, S R - Martin, P A - Ewins, P J - Barker, Michael E.Type: ArticleIn: The journal of raptor researchVolume: 37Series:Issue: 4Date: 2003Page Range: 307--314Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects: