Martial eagle (Polemaetus bellicosus) feeding on a helmeted guineafowl (Numida meleagris). Martial eagles are the largest eagles in Africa. They soar over the plains and scrublands of sub-Saharan Africa, hunting everything from gamebirds, snakes and lizards, to jackal, domestic goats and mammals as large as small antelopes. Martial eagles reach around 80 centimetres in length and patrol a territory of about 130 square kilometres.