Macrocercus Ararauna. Vieill.

The genus Macrocercus is characterized by the robustness of its beak, which is extremely broad and powerful; by the nakedness of its face, which is sometimes entirely bare, and sometimes partially covered with lines of short and scattered feathers; and by the size and form of its tail, which is longer than the body, regularly graduated, and terminating in an acute apex. The whole of the species are American, and are remarkable for the brilliancy of their colours, which are perhaps more varied and more gaudy than those of any of the other modern divisions of the Linnean genus Psittacus. They are consequently more sought after as objects of luxury and elegance, and bear a higher comparative value than the rest of the Parrots. In common with the entire tribe, they inhabit the tropical regions of the earth, and live chiefly upon fruits and seeds. Among the latter they uniformly give the preference to such as are provided with a hard and shelly covering. These they crack with great dexterity, carefully rejecting the outer coat, and swallowing only the internal nut.

The Blue and Yellow Macaw is one of the finest of the group. The whole of its upper surface is covered with plumage of the most beautiful azure; the feathers of the under parts on the contrary are of a brilliant yellow. The naked part of the cheeks, which are white slightly tinged with flesh colour, is ornamented with three lines of minute blackish feathers; and the throat is surrounded by a broad collar of greenish black. The forehead is yellowish green.