Aquila chrysaetos, commonly known as the golden eagle, is a large bird of prey found across the Northern Hemisphere. It is characterized by its dark brown plumage, golden feathers on the back of its head and neck, and powerful build. Golden eagles are known for their impressive wingspan, which can reach up to 7.5 feet, allowing them to soar gracefully in search of food. These eagles primarily hunt small to medium-sized mammals, such as rabbits and squirrels, using their keen eyesight and swift flight. They build large nests, often on cliffs or tall trees, and are known for their strong pair bonds, often mating for life.