AYES. 445 



Cacatua Briss. *, Gray, Plyctolophus Yaill. Bill short, strong, 

 curved, with tip acute, end of the lower mandible truncate, emar- 

 ginate. Head crested. "Wings long, with second, third and fourth 

 quills subeqvial, longest of all. Tail short, even. 



The cockatoos are large crested, white parrots from the Mohiccan and 

 Philippine Islands and fromNew Holland. Sp. Psittacus cristatus L., Briss. 

 Ornith. IV. PI. 21, Buff. PL enl. 263; white, the tail yellowish below, 

 bill and legs black. — The crest is yellow and the wings are long in Psittacus 

 yaleritus Lath., Psittacus cristatus, White Journal, PI. 26, p. 237, Lear 

 Parr. PI. 3, Guer. Iconogr., Ois. PI. 36, fig. 2. — Psittacus rosaceus Lath., 

 Psittacus moluccensis Gmel., Buff. PI. enl. 498, Lear Parr. PI. 2, is rosy- 

 white, the crest red within. These species, especially the last-named, are 

 larger than the rest. To the smaller species belong: Psittacus sulphu- 

 rcits Gmel., Buff. PL enl. 14, Cuv. E. Ani., ed. ill, Ois. PL 55, fig. 5, 

 with yellow crest and a yellow spot under the eyes. — Psittacus j)hili2:)pi}ia- 

 rwiii Gmel., Buff. PL enl. 191, with a white bill, &c. On account of its 

 beautiful crest-feathers the following deserves notice, Psittacus Leadheateri 

 Vigors, Lear Parr. PL 5, Selbt 1. 1. PL 13, from New Holland. 



Calyptorliynchus ViGORS and HoESF., {Banhsianus Less, and 

 CaTlocej)]ialon ejusd., Corydon Wagl.). Bill high, with culmen 

 declivous, arched, with tip curved; lower mandible short, some- 

 times broader than upper, with tip excised, covered at the base by 

 recumbent feathers. Tongue fleshy, smooth. Tail somewhat long, 

 broad, rounded. Wings with third, fourth and fifth quills sub- 

 equal, longest of all. Tarsi very short, covered with small scales. 

 Feathers of the crown very often produced with a kind of crest. 



Sp. Cahjptwhjnclius Bwnksii, Psittacus Banlcsii Lath., Phillip Voy. to Bot. 

 Bay, PL 40, p. 267, Less. Ornith. PL 18, fig. 2, &c. Compare Lafres- 

 NAYE in GuERiN Mcigas. de Zool. 1834, Ois. PL 24 — 26. Large, black 

 birds of New Holland, with red on the outermost tail-feathers. They feed 

 not only on fruits and seeds, but also on bulbous roots. 



Nestor Wagl., Centrourus SwAiNS. Bill longer than high, 

 compressed, cm-ved, gaping at the sides. Claws strong, curved. 

 Wings long, with third and fourth quills longest of all. Tail 

 moderate, almost even, with the points of the feathers naked, acute. 



Sp. Nestor Nova: Zeelandice Less., Psittacus australis Shaw, Selby Parr. 

 PL 12 ; — Nestor productus Gould. 



^ This name is derived from the note of the bird, as the word Cuculus with the 

 ancients. 



