It is nevertheless considered Africa's most powerful eagle when measured in terms of the weight of its prey items.[1] It often preys on mammals such as bushbuck (Tragelaphus scriptus), exceptionally weighing up to 30 kg (66 lb) albeit usually much less.[6][7] The crowned eagle possesses unusually large talons and strong legs, and may kill by crushing the skull. The eagle is also ferocious; some records from beneath a nest show the remains of a large, male Sooty mangabey weighing 11 kg (24 lb).[8]