Cockatoos come from Australia and the East
Indies. The upper jaw of the bill overlaps the narrow lower jaw.
The crest is erectile. The 18-inch White-crested Cockatoo, Cacatua
alba, is all white, with a crest of feathers broadened at the
tip. It ilives in northern and central Moluccas. The Salmon-crested
or Pink-crested Cockatoo, Cacatua moluccensis, found in the southern
Moluccas, is 20 in. long, with white, salmon-tinged feathers.
The longest feathers of its broad crest are red.
The Lesser Sulphur-crested Cockatoo, Cacatua
galerita, is almost all white except for the narrow yellow crest
and yellow cheeks. Its small size (18 in.) makes it a popular
cage-bird. The Galah or Roseate Cockatoo, Cacatua roseicapilla,
is light grey above. The head and chest are pink. It is found
in western and northern Australia.
Leadbeater's Cockatoo (Cacatua leadbeateri)
also of Australia, has a crest that is a combination of red,
white and yellow. The upper parts are white, the underparts pink.
The Little Corella or Bare-eyed Cockatoo (Cacatua sanguinea)
has a small, wide crest and a bare eye-ring. These species are
considered pests in Australia because of the damage they do to
crops.
The bare cheeks of the giant black cockatoo
(Calyptorhynchus magnificus) blush red when it is excited. It
lives in the rain forests of New Guinea where it feeds on candlenuts.
The cockatoo builds its nest in a high
tree hole in the tropical forest. The female lays two white eggs
on wood chips. The young, which hatch naked and blind are fed
by the adults by regurgitation of partially digested food for
about three months. Cockatoos often travel in immense flocks
numbering many thousands. They make good pets and are found in
all zoos.