The Yellow-crested Cockatoo is a small, mostly white cockatoo instantly recognisable by the narrow, forward-curving crest of lemon-yellow feathers it can raise over its crown. Endemic to Indonesia and Timor-Leste, it was once a common sight across the forests and farmland of the Lesser Sunda Islands and Sulawesi. Decades of trapping for the international cage-bird trade, combined with widespread habitat loss, have reduced it to scattered pockets, and the species is now listed as Critically Endangered.
These are intelligent, sociable birds that gather in noisy flocks and pairs, feeding high in the canopy and calling raucously in flight. Several subspecies are recognised, including the citron-crested form of Sumba, which shows a distinctly orange crest rather than a yellow one. Conservation projects, captive-breeding programmes and stricter trade enforcement now offer a fragile lifeline to a bird whose beauty was, ironically, the main cause of its collapse.
A compact, all-white cockatoo, the Yellow-crested is best told from its larger relatives by size and by the neat backward-curving yellow crest. At rest the crest lies flat and the bird can look plainly white, but the yellow wash on the cheeks and the pale yellow underside of the wings and tail are useful clues.
| Size | Small cockatoo, 33-35 cm long, weighing roughly 300-350 g |
| Plumage | Almost entirely white with a pale yellow wash on the ear coverts |
| Crest | Narrow, forward-curving crest of bright yellow (orange in the citron-crested form) |
| Wings and tail | Yellow suffusion on the underside of the flight feathers and tail |
| Bare parts | Blackish-grey bill, pale bluish eye-ring, dark legs |
| Eyes | Dark brown or blackish in males, reddish-brown in many females |
Like most cockatoos it is loud and far-carrying. The usual call is a harsh, screeching squawk given repeatedly in flight and when alarmed, along with softer chattering and grating notes exchanged between birds while feeding or perched. There is no melodic song; communication is a raucous, grating vocabulary typical of the family.
The species is native to Indonesia and Timor-Leste, occurring on Sulawesi, the Lesser Sunda Islands including Sumba, Flores and Timor, and a number of smaller islands. It favours lowland and hill forest, forest edge, wooded farmland and coconut plantations, generally below about 800 metres. Once widespread, it now survives mainly in small, isolated populations, with Sumba and Komodo among its more important remaining strongholds.
Yellow-crested Cockatoos are primarily seed and fruit eaters. They forage in the canopy and on the ground for seeds, fruits, nuts, berries, buds and blossoms, and will also take crops such as maize, which brings them into conflict with farmers. Flocks often feed together in fruiting or seeding trees, using their powerful bills to crack hard shells and extract kernels.
Breeding pairs nest in tree cavities, often high in a large forest tree. The female typically lays two to three eggs, which both parents help incubate for around 28 days. Chicks remain in the nest for roughly ten weeks before fledging. The reliance on old, hollow-bearing trees makes the species especially vulnerable to logging, while accessible nests are also targeted by trappers.
- Sulphur-crested Cockatoo: Much larger and found in Australia and New Guinea, with a broader yellow crest
- Tanimbar Corella: Similar small white cockatoo but with a rounded white crest and no yellow
- Salmon-crested Cockatoo: Larger Moluccan species with a pink-white crest
Why is the Yellow-crested Cockatoo critically endangered?
The main cause was decades of trapping for the pet trade, which stripped wild populations, compounded by loss of forest habitat. Numbers fell so steeply that only small, scattered groups remain.
What is the difference between the Yellow-crested and Sulphur-crested Cockatoo?
The Yellow-crested is much smaller, at 33-35 cm, and is confined to Indonesia and Timor, whereas the Sulphur-crested Cockatoo is a larger Australian and New Guinea species.
What is the citron-crested cockatoo?
It is a subspecies of the Yellow-crested Cockatoo found on Sumba, distinguished by an orange rather than yellow crest.
How long does a Yellow-crested Cockatoo live?
They are long-lived birds and can survive several decades, with individuals in captivity reaching 40 years or more.