OBSERVATIONS.--This species is very mild, speaks but little, and even seems to be of a melancholy turn. Its call, which is "_keirshe_," is loud and sonorous. It is the same species which is mentioned in the Travels of Bougainville, by Pernetty. "We found it," says he, "at Montevideo, where our sailors bought several at two piastres a-piece. These birds were very tame and harmless; they soon learnt to speak, and became so fond of the men that they were never easy when away from them." The general opinion is, that they will not live more than a year and a half if kept in a cage; this prejudice is completely refuted by the bird from which this description is taken, and which may be seen in the collection of his Highness the Duke of Saxe Meiningen. THE RED AND BLUE HEADED PARRAKEET. Psittacus canicularis, LINNÆUS; La Perruche à front rouge, BUFFON; Der rothstirnige Sittich, Bechstein. This species, which is rather common among us, is ten inches in length, of which the tail measures half, of which the folded wings cover one third; the forehead is scarlet, the top of the head a fine sky blue, paler at the back; the upper part of the body meadow green, the under lighter. The forehead is orange, and the circle of the eye pale yellow may be peculiar to the female. OBSERVATIONS.--This parrot is handsome, but does not speak. Although a native of South America, is not very delicate or difficult to preserve. The food as usual. THE RED-CRESCENTED PARAKEET. Psittacus lunatus, BECHSTEIN; Der Mondfleckige, BECHSTEIN. This species, which I have not found described by any author, may be seen in the collection belonging to his Highness the Duke of Saxe Meiningen. Its length is eleven inches and a half, of which the tail measures six. The beak, one inch in length. The forehead is deep red, a crescent of the same colour extends towards the upper part of the neck, ornamenting the top of the breast; the upper part of the body is leek green, becoming a little darker on the head. The under part of the body is light green, slightly tinted with red on the breast; the under part of the pen and tail feathers is dirty yellow. OBSERVATIONS.--I do not know of what country this parrot is a native. It appears very lively, cries often and very loudly "_goeur, goeur_," speaks prettily and distinctly, and appears very healthy. The bird from which the description is taken is certainly a proof that this species will attain a great age, for it is very old. THE GREAT WHITE COCKATOO. Psittacus cristatus, LINNÆUS; Kakatoes à huppe blanche, BUFFON; Der gemeine Kakatu, BECHSTEIN.