Pitch black feathers with white under the wings, bright red face and legs are characteristic markings of the beautiful Bateleur eagle. It is usually a silent bird, but it will sometimes utter loud screams if excited. While calling, it will raises its half spread wings in a kind of threat posture, as it utter short “kau-kau-kau” calls followed by two mostly long “koaagh” calls to the end of this territorial display.