The peregrine falcon (y ó u s ǔ n) is a medium-sized raptor of the falcon family and genus, with a total of 18 subspecies. The body length is 41-50 centimeters. The wings are long and pointed, with yellow around the eyes. There is a thick, vertically downward black mustache on the cheeks. The head to the back of the neck is gray black, and the rest of the upper body is blue gray. The tail has several black horizontal stripes. It mainly inhabits mountainous, hilly, semi desert, swamp and lake coastal areas. Distributed all over the world. It is the national bird of the United Arab Emirates and Angola. On February 5, 2021, it was listed as a second-class species in China's National Key Protected Wildlife List.