Sulphur-crested Cockatoo

They can be locally very numerous, leading to them sometimes being considered pests. As highly intelligent birds, they are well known in aviculture, although they can be demanding pets. This species is native to large parts of Australia, Indonesia, and Papua New Guinea. Outside Australia, they have been introduced to Singapore, where their numbers have been estimated to be between 500 and 2000. Individuals have also been introduced to Palau and New Zealand. (Wikipedia, general species account).

Sulphur-crested Cockatoo is a relatively large white cockatoo found in wooded habitats in Australia, New Guinea, and some of the islands of Indonesia. The four recognised subspecies are: A 2024 genetic study found that the Triton cockatoo is genetically distinct from the two Australian forms of sulphur-crested cockatoos, so should be considered a separate species, Cacatua triton. Within Australia, sulphur-crested cockatoos of the nominate race have also been introduced to Perth, which is far outside their natural range. (Wikipedia, general species account).