Chinese mergansers are pictured in the Beipanjiang Grand Canyon National Wetlands Park in southwest China's Guizhou Province, Jan. 6, 2024.

Fourteen Chinese mergansers, an endangered species of duck, have been discovered wintering in a wetland park in southwest China's Guizhou Province, marking the third consecutive winter sighting at the same location, according to the Guizhou provincial forest inventory and planning institute. (Guo Xuan/Guizhou Institute of Biology/Handout via Xinhua)