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By: Gjershaug, Jan Ove, - Rov, N - Nygard, T - Prawiradilaga, D M - Afianto, M Y - Hapsoro - Supriatna, AType: ArticleIn: The journal of raptor researchVolume: 38Series:Issue: 4Date: 2004Page Range: 343--349Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects:
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By: Gjershaug, Jan Ove, - Forset, Ole Andreas - Woldvik, Kjell - Espmark, YngveType: ArticleIn: Bulletin of the British Ornithologists' ClubVolume: 126Series:Issue:Date: 2006Page Range: 73--80Publication Info: London, British Ornithologists' Club, 1893-Subjects:
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By: Gjershaug, Jan Ove, - Kvaloy, K - Rov, N - Prawiradilaga, D M - Suparman, U - Rahman, ZType: ArticleIn: ForktailVolume: 20Series:Issue:Date: 2004Page Range: 55--62Publication Info: Oxford,Subjects: