![]() ![]() The plumage is overall white, while the underwing and -tail are tinged yellow. Sulphur-crested cockatoos are 44–55 cm (17.5–21.5 in) long, with the Australian subspecies larger than subspecies from New Guinea and nearby islands. Description Sulphur-crested cockatoo in the Bushland Shire, northern suburban Sydney. Kai Islands and Ambon), but it is unclear if it has managed to become established there. This species has also been recorded as established in Hawaii and from various islands in Wallacea (e.g. In New Zealand, the introduced populations may number less than 1000. They have also been introduced to Palau and New Zealand. Outside Australia, they have been introduced to Singapore, where their numbers have been estimated to be between 5. Within Australia, sulphur-crested cockatoos of the nominate race have also been introduced to Perth, which is far outside the natural range. Northern Australia from West Australia to the Gulf of Carpentaria Restricted to the Aru Islands in the Maluku province of eastern Indonesia Except for highland areas, they occur throughout most of New Guinea and on nearby smaller islands such as Waigeo, Misool and Aru, and various islands in the Cenderawasih Bay and Milne Bay.įound in New Guinea and the surrounding islands They are numerous in suburban habitats in cities such as Adelaide, Melbourne, Canberra, Sydney, Brisbane and Perth. In Australia, sulphur-crested cockatoos can be found widely in the north and east, ranging from the Kimberley to as far south as Tasmania, but avoiding arid inland areas with few trees. A highly intelligent bird, they are well known in aviculture, although they can be demanding pets. ![]() They can be locally very numerous, leading to them sometimes being considered pests. The sulphur-crested cockatoo ( Cacatua galerita) is a relatively large white cockatoo found in wooded habitats in Australia, New Guinea, and some of the islands of Indonesia. Phylogenetic tree of cockatoo species, showing their relatedness to each other.Ĭlick on the link for more information and pictures of this cockatoo species.Sulphur-crested cockatoo range (in red), introduced range (in violet) The Raven cockatoos are a separate group as well, with five species that are more related to each other than to all the other cockatoo species. In the graph you can also see that there are two groups of Cacatua species: the bigger species (with Cacatua alba) and the smaller corellas (with Cacatua sanguinea). In this particular phylogenetic tree, the Palm cockatoo ( Probosciger) is the least related to all other species of cockatoos. Species that are less related to each other, will have a common ancestor that is farther up in the tree (to the left) than species that are more closely related. You can determine the relatedness of two species by comparing the length of the bars, less distance between species means more relatedness. In the next graph you can see how all the cockatoo species are related to each other.
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