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By: Deng, Wen-Hong - Gao, Wei - Zhao, JiangType: ArticleIn: The journal of raptor researchVolume: 38Series:Issue: 3Date: 2004Page Range: 263--269Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects:
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By: Deng, Wen-Hong - Gao, Wei - Zheng, GuangmeiType: ArticleIn: The journal of raptor researchVolume: 37Series:Issue: 3Date: 2003Page Range: 228--235Publication Info: Hastings, Minn, Raptor Research Foundation, ©1987-Subjects: