COCK A TOO—COCK-OF-THE-ROCK 93 
COCKATOO, Malay Kakatiéa, a name used in England and, 
with some modification of spelling, in other European countries for 
more than 200 years, and undoubtedly taken from the cry of one or 
other of the well-known birds so called, though it would be impossible 
to say which of them. With the exception of one species which 
inhabits the Philippine Islands, the Cockatoos are peculiar to the 
Australian Region, and are especially abundant in that portion of 
the Malay Archipelago which is included in it, but they do not go 
farther eastward than the Solomon Islands. They seem to be a 
very natural group of the Order Psittaci (PARROT), and some writers 
would regard them as forming a Family Cacatuidx or Plictolophida, 
while others consider the lower rank of a subfamily sufficient for 
them. Six genera are pretty generally admitted, Cacatua, Callo- 
cephalon, Calopsittacus (COCKATEEL), Calyptorhynchus, Licmetis, and 
Microglossa—the first containing all the species ordinarily called 
Cockatoos and kept in confinement, which are commonly white with 
yellow, or pink crests. The second genus has only one species, an 
iron-grey bird with a bright red head. The fourth contains the large 
black species of Australia, with a long tail banded with scarlet, 
yellow or cream-colour. ‘The fifth has a considerable resemblance 
to the first, but the birds have a slender bill, while the sixth com- 
prises the largest forms to be found in the Order, birds whose 
wholly black plumage is relieved by their bare cheeks of bright red. 
In striking contrast to these last some systematists would place 
among the Cockatoos the smallest of the Parrot-tribe, members of 
the genus Vasiterna, from New Guinea and the Solomon Islands, 
but that as Dr. Murie has shewn (Proc. Zool. Soc. 1865, p. 622), 
really presents no sort of resemblance to them. 
COCK-OF-THE-PLAINS, one of the American Tetraonidx 
(GROUSE), Centrocercus wrophasianus. 
COCK-OF-THE-ROCK, a “familiar name,” according to Swain- 
son in 1837 (Classif. B. ui. p. 76), “long bestowed” on a bird from 
the northern parts of South America; but his seems to be the first 
rendering into English of the old French Coq-de-roche, or Coc-des-roches 
as Barrere (/’r. Equinox. p. 132) has it. The flat-sided crest borne 
by the bird was likened by the colonists to that of the Hoopor, and 
accordingly he in 1745 (Ornithol. p. 46) placed it in the genus 
Upupa, while Edwards a few years after figured its head 
(Gleanings, pl. 264) as that of the “ Hoopoe Hen,” having received 
it from Surinam under the name of Widdehop (Hoopoe), and thus 
Linneus was originally induced to follow their example, though 
finally he referred it to the genus Pipra (MANAKIN); but in the 
meanwhile Brisson, who first gave a good description and figure of 
it, made it in 1760 the representative of a new genus upicola. In 
1769 Vosmaer again figured it, expressing his surprise that the 
