HABITATION.--This parrot is also a native of the hottest parts of South America, frequenting savannas, or any other open places, and building its nest even in the holes of the Termites (_Termes fatalis_, LINNÆUS.) These birds are so sociable that they may be seen in flocks of five or six hundred. In the house, they must always be kept in pairs, and generally in cages. They show the tenderness of their attachment to each other by their continual caresses; this is in fact so great, that if one die the other soon languishes from grief. FOOD.--When these birds go forth to steal chestnuts, acorns, peas, and similar fruits, which form their food, they always place a sentinel to warn them of the approach of an enemy: at the least alarm, they fly away, uttering loud cries. When confined, they are fed with nuts, and bread soaked in boiled milk. ATTRACTIVE QUALITIES.--Their handsome plumage, their affectionate and confiding ways, and the tenderness of attachment which these pretty birds have for each other, make them great favourites; but they learn scarcely any thing, and their continual cries are sometimes very annoying. THE LONG-TAILED GREEN PARRAKEET. Psittacus rufirostris, LINNÆUS; Le Sincialo, BUFFON; Der rothschnäblige Sittich, BECHSTEIN. The length of this species is twelve inches and a half, but the tail alone measures seven inches and a half. This bird is not larger than a blackbird; the folded wings only cover one quarter of the tail, the centre feathers of which are nearly five inches longer than the exterior ones. The upper mandible of the beak is of a blood red, with the point black; the under one is entirely black. The circle of the eyes, the naked membrane of the beak, and the feet, are flesh-coloured; the irides are orange. The rest of the body is yellowish green, with the wings bordered with light yellow. There are varieties of different shades of green, the tail feathers of which are blue at the extremity. This species inhabits the hottest part of South America. Its cry is noisy and frequent; it soon learns to speak, whistle, and imitate the sounds of most animals as well as birds. In the cage, where it cannot have much other exercise, it chatters and squalls so incessantly, that it is often very disagreeable. It must be treated like the preceding species, but does not appear so delicate. THE BLUE-HEADED PARROT. Psittacus cyanocephalus, LINNÆUS; La Perruche à tête bleu, BUFFON; Der Blauköpfige Sittich, BECHSTEIN. This beautiful species is not more scarce than the preceding, and is about the size of a turtle dove, although its length is eleven inches and a half, six of which being included in the tail, half of this is covered by the folded wings. The naked skin round the eyes is yellow; the upper part of the body is green, the under part yellowish. The forehead has some tints of red; the head is blue; the throat violet, with a grey tint.