Common ostrich other members of Palaeognathae and thus the flighted tinamous are the sister group to the extinct moa. It is distinctive in its appearance, with a long neck and legs, and can run for a long time at a speed of or even up to about , the fastest land speed of any bird. The common ostrich is the largest living species of bird and lays the largest eggs of any living bird (extinct elephant birds of Madagascar and the giant moa of New Zealand laid larger eggs). The common ostrich's diet consists mainly of plant matter, though it also eats
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