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  1. By: Li, Xinhai - Li, Dianmo - Ma, Zhijun - Zhai, Tianqing - Drummond, Hugh
    Type: Article
    In: The Wilson bulletin
    Volume: 116
    Issue: 2
    Date: 2004
    Page Range: 172--176
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-