The blackbird is a bald-nosed crow. It belongs to passeriformes, and the skin at the base of adult beak is often white and bald, so it is also called white-billed crow. Among passeriformes, the bald-nosed crow is one of the largest species. In China, this species is mainly distributed in the eastern region, and can be found in the northeast, north China, central and eastern Inner Mongolia, Gansu, Qinghai, Sichuan and the southeast coast. This species can reach Sichuan Basin in the westernmost boundary of eastern China and Hainan Island in the southern boundary. In addition, there are also named subspecies of this species in Kashi and Yining in western Xinjiang, China.