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Yellow-crested Cockatoo  (Cacatua sulphurea)

Also Known As: Lesser Sulphur-crested Cockatoo, Dwarf Sulphur-crested Cockatoo, Timor Cockatoo, Citron-crested Cockatoo (C.s. citrinocristata)

Citron-crested Cockatoo from the Indonesian island Sumba

Credit: © Ray Hales

Did You Know?
The Yellow-crested Cockatoo may also tackle quite large coconuts (Cocos nucifera) for food.

Status in the Wild
World Population:
Less than 1000

C.s. sulphurea: Sulawesi and nearby islands, and islands in Flores Sea. Introduced to Hong Kong and Singapore.
C.s. parvula: Nusa Penida and Lesser Sunda Islands (except Sumba).
C.s. abbotti: Masalembu, in Java Sea.
C.s. citrinocristata: Restricted to Sumba in Lesser Sunda Islands.

Found up to 1200m (3936 ft). Occurs in forest edge, woodland, farmland, coconut palms, semi-arid areas and forest.

Threat Summary:
Unsustainable trapping for wild bird trade.

IUCN Rating:
Critically endangered

Wild Diet:
Eats seeds, fruit, berries, flowers and nuts. May also take cultivated maize.

CITES Rating:
Appendix I

Usually encountered in pairs or small groups of up to ten birds. Larger flocks will gather to feed in fruiting trees. Are noisy and conspicuous. Groups leaving roosting areas in the mountains will fly down to lower elevations to feed. Love to rain-bathe.

Clutch and Egg Size:
2, sometimes 3, elliptical eggs, 41.0 x 27.0mm (1.6 x 1 in).

Breeding Season:
On Buton September-October beginning; Nusa Tenggara April-May.

Project Status (WPT):
WPT has funded part of the work of two scientists from the Wildlife Conservation Society to study the Citron-crested Cockatoo, a subspecies of the Yellow-crested.

Links to Other Project(s):

More Info Sites:

Preliminary Population Estimates of Yellow-crested Cockatoos on Komodo Island