Largest organisms is frequently poorly documented and many are subject to conjecture and estimation. The largest living bird, a member of the Struthioniformes, is the common ostrich ("Struthio camelus"), from the plains of Africa and Arabia. A large male ostrich can reach a height of and weigh over . A mass of has been cited for the common ostrich but no wild ostriches of this weight have been verified. Eggs laid by the ostrich can weigh and are the largest eggs in the world today. The largest bird in the fossil record may be the extinct elephant birds ("Aepyornis") of Madagascar, which
Bare-faced go-away-bird in two disjunct areas in Africa: one in Ethiopia, and the other in Burundi, DRC, Kenya, Malawi, Rwanda, Tanzania, Uganda and Zambia. It occurs in open woodland, thickets and in cultivation with scattered trees. It may be found up to 1,400 m, but at Loita up to 2,200 m in scattered cedar, acacia and evergreen scrub. Two geographically isolated races are accepted: These birds primarily eat fruits, leaf buds, and seeds. Like other Touracos, the bare-faced go-away-bird lays two to three greenish-white eggs each mating season. Nests are often built in tall acacia trees. Bare-faced go-away-bird The bare-faced go-away-bird ("Corythaixoides