Aerial photo taken on April 11, 2021 shows a staff member feed ducks at a duck industry demonstration park in Guanyinge Village of Sansui County, southwest China's Guizhou Province. Sansui County has a 600-year duck breeding history. In recent years, Sansui County has taken the development of duck industry to enrich the people living there. It has formed a whole industry chain, including breeding, processing and marketing. It has become one of the main income sources for locals. (Photo by Yang Xiaohai/Xinhua)
