sentences:  More obviously, the steppe eagle lacks the paler overall colours and contrasting brownish streaking of juvenile imperials.Feather wear can make the wing shape of the two resemble the other but the larger head and less compact frame of the imperial species render its flight profile distinctive.The only darker large booted eagle encountered by the eastern imperial eagle, in its African winter quarters, is the jet-black Verreaux's eagle ("Aquila verreauxii") which is more suggestive in size and proportions of the golden eagle.