Golden Eagles are one of the world's largest birds of prey, measuring about 30-40 inches with a wingspan of 60-80 inches. Females are often larger than males, weighing eight to 13 pounds as opposed to the six and a half to nine and a half pound male. Generally, they are a dark brown color, with golden highlights about the head and back of the neck. The tail usually has a black border, and young Golden Eagles may have white tails. Younger Goldens also have white patches on the undersides of their wings.