The golden eagle, a sooty-brown eagle in the family Accipitridae, is a well-known raptor in the northern hemisphere. Like all eagles, it belongs to the family Accipitridae. Golden eagles are famous for their outstanding appearance and agile and powerful flight; the wingspan of an adult bird averages more than 2 meters, the body length can reach 1 meter, and its legs and claws are all covered with feathers. They generally live in mountainous or hilly areas, and they often build nests on the cliffs of valleys and protrusions from mountain walls. The type locality of the Swedish golden eagle.