Adult imperial eagles are stocky in shape with black-brown feathers and a pale golden crown and nape. The shoulders have prominent white patches and the tail is greyish-brown. The head is large, the wings are long and straight and the strong feet have long, curved talons. Juveniles are paler with patterning on the rump, wings and tail. They have bold streaks on the underwings and the underside of the body (2).