Photo shows a pair of black swans with their seven cygnets in Zhangye National Wetland Park, Zhangye city, northwest China’s Gansu Province. (Photo/Liu Fujun)
A black swan recently had seven cygnets in Zhangye National Wetland Park, Zhangye city, northwest China’s Gansu Province. The cygnets were seen foraging and playing under the guidance of their parents.
