A crested ibis stands on a tree branch at the Yangxian crested ibis ecological park in Yangxian County, northwest China's Shaanxi Province, Jan. 19, 2018. Efforts to protect the crested ibis (Nipponia nippon) and its habitat have helped the population grow from only seven in the 1980s to over 2,600 today. (Xinhua/Liu Xiao)