A flock of wild mandarin ducks swims across the Xinanjiang River in the Mount Huangshan scenic area, Anhui province, Feb 15, 2017. As spring arrives, temperatures are climbing steadily in most parts of China. Here the mandarin ducks frolic and forage in the warm waterside sunlight. The arrival of groups of wild mandarin ducks in this region indicates that Huangshan city's relentless efforts to improve local ecological conditions are starting to pay off.[Photo by Shi Guangde/Asianewsphoto]