Description : The Bateleur (Terathopius ecaudatus) is a medium-sized eagle in the bird family Accipitridae, common in the open savanna country in Sub-Saharan Africa. It nests in trees, laying a single egg which is incubated by the female for 42 to 43 days, with a further 90 to 125 days until fledging. Bateleurs pair for life and will use the same nest for a number of years. The eagle hunts over a territory of 250 square miles a day. The prey of this raptor is mostly birds, including pigeons and sand grouse, and also small mammals. 08/03/09. Gauteng, South Africa..