A group of wild geese fly over snow-coverd Yellow River Wetland in Mengjin county in Luoyang, Central China's Henan province, Nov. 19, 2009. 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]