Citron-crested Cockatoo

The Citron-crested Cockatoo, Cacatua sulphurea citrinocristata is a medium-sized cockatoo with an orange crest, dark grey beak, pale orange ear patches, and strong feet and claws. The underside of the larger wing and tail feathers have a pale yellow colour. The eye colour ranges from brown through very dark brown to black. Both sexes are similar.
The smallest of the Yellow-crested Cockatoo subspecies, it is distributed and endemic to Sumba and Lesser Sunda Islands in Indonesia. The diet consists mainly of seeds, buds, fruits, nuts and herbaceous plants.

Illustrates crest and ear patch coloration - Jurong BirdPark, Singapore

[edit] Conservation status
The Citron-crested Cockatoo is classified as critically endangered. Its numbers in the wild have declined due to habitat loss and illegal trapping for the cage-bird trade. A 1993 survey of Sumba estimated the species' numbers at less than 2,000 individuals. It is listed in appendix I of the CITES (Convention on International Trade in Endangered Species of Wild Flora and Fauna) list of protected species. CITES protects endangered species, like the cockatoo, by making the trade of wild-caught birds illegal. However, trade of the cockatoos bred in captivity is permitted in the United States.

[edit] Aviculture
As hand-reared birds Citron-crested Cockatoos can make good pets, as they are friendly and sociable. They are not as noisy as most cockatoos, but are curious and like to chew. Generally they are quiet, but they can make a loud honking or screeching sound, which is lower in pitch than the calls of most parrots. They can also make a repetitive quieter whistling or squeaking noise. They are not good at imitating human speech as some members of the parrot family. They readily learn tricks and they can be trained. They often raise the coloured crest feathers in display or when surprised. Their droppings are semi-solid and can be messy. As with many cockatoo species, Citron-crested Cockatoos taken as pets need much greater care and attention than other companion parrots. In personality, they are often more shy or nervous than other cockatoos and should be allowed to adjust to new circumstances gradually in order to become comfortable.
They are not commonly seen in pet stores, but are becoming more popular with breeders.