A photographer takes photos for two black swans in Luohe, a branch of the Yellow River in Luoyang, Central China's Henan province, Jan. 28, 2014. Yellow River Wetland is a National Natural Reserve with a total area of 68 thousands hectare in Henan province. It's a bird breeding place with over 41 types of animals under first-grade and second-grade protection at the state level. [Photo/Xinhua]
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