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
Yellow-billed loon with other birds on good fishing spots. The female lays two eggs measuring . The eggs are strongly oval, and are a light purple-brown with darker blotches interspersed. This colour camouflages with the soil and vegetation that this bird nests near. Most of the time, although, the egg is not visible due to incubation, which takes around 27 to 29 days. The yellow-billed loon is a specialist fish eater, though it also takes crustaceans, molluscs and annelids, especially for its young. It dives in pursuit of prey, which is caught underwater. Probably as a way to avoid spreading parasites, it