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
Lesser bird-of-paradise larger greater bird-of-paradise, but the male of that species has a dark chest, whereas the female is entirely brown (no whitish underparts). The males are polygamous, and perform courtship displays in leks. The female usually lays two pinkish eggs with dark markings in a nest in a tree high above ground. Its diet consists mainly of fruits and insects. The lesser bird-of-paradise is distributed throughout forests of northern New Guinea, and the nearby islands of Misool and Yapen. Widespread and common throughout its large range, the lesser bird-of-paradise is evaluated as Least Concern on the IUCN Red List of Threatened