From your picture, this one is called Fire Duck, scientific name-Warbling Duck.

South of its commonly known as the fire duck, the north of its commonly known as the fire geese, the species originated from the American geese, after the introduction of China's Yunnan-Guizhou Plateau breeding to date. In the southern mountains of Guizhou Province in China, there is a strange duck, the local people call it "fire duck", also known as the Beanbag duck, is a rare special bird of prey.