Читать книгу The Circle of Knowledge: A Classified, Simplified, Visualized Book of Answers - Various - Страница 271

This group is characterized by a considerable sized body, long neck, flat beak, powerful legs and strong, two or three-toed running feet. The bones are heavy; the wings are stunted, and useless for flying; and the plumage is scanty on the head, neck, legs and abdomen.

Cassowary (Casuarius).—A bird of ostrich affinities, living in New Guinea, and other Malay Islands, and Northern Australia. They have rudimentary wings, live in dense forests, head protected by horny helmet, have blue, red and yellow wattles, three-toed feet, the inner toe with powerful claw, used as weapon, eat large quantities of miscellaneous articles, including indigestible ones; and can be tamed. Their cry is a loud croak. Their eggs, five in number, are laid in August and September, in nests on ground, covered in brush. The young are brownish, but gradually become blacker. The helmet is not full-grown until the fifth year.

Emu (Dromæus) is closely akin to the cassowary family. There are two species, both Australian—the Common Emu and the Spotted Emu. They differ from the cassowaries in several marked features—e.g., the head and neck are feathered except on cheeks and throat, there is no “helmet,” nor are there wattles on the neck, the bill is broad, and the claws of the three toes are almost of equal length. The emu is a large bird, standing about six feet in height. The plumage is like that of the cassowary; the color is predominantly dull brown, darker on the head, neck and middle line of the back, lighter beneath. The naked parts of head and neck are grayish blue, the bill and feet brownish. The young are striped with black. The wings are of course rudimentary, but the legs serve the bird well both in running and kicking. Timid and peaceful in character, the emu trusts to its speed for safety. It is valued on account of its beef-like flesh, abundant oil, and edible eggs, but is unfortunately being destroyed with too great carelessness.

Ostrich.—See Domesticated Animals.

Rhea, also called Nandu and American Ostrich is a South American bird, which form a somewhat isolated group, though nearer to the ostrich than to any other bird. They are incapable of flight, but the wings are rather better developed than in the ostrich. As in the ostrich and the apteryx, the feathers have no aftershaft, and the color of the eggs is white. The male bird incubates. Three species have been described.