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Scientist and cockatoo authority Matt Cameron has proposed dropping the "black" and shortening the name to "yellow-tailed cockatoo", explaining that shorter names are more widely accepted. [ 11 ] Among the black cockatoos, the two Western Australian white-tailed species (Carnaby's and Baudin's black cockatoos), together with the yellow-tailed ...
Another bird residing at London and Rotterdam Zoos was 45 years and 5 months of age when it died in 1979. [43] Several calls of red-tailed black cockatoos have been recorded. The bird's contact call is a rolling metallic krur-rr or kree, which may carry long distances and is always given while flying; [44] its alarm call is sharp. [44]
Female flying and male perching on tree. Carnaby's black cockatoo is 53–58 cm (21–23 in) in length with a 110 cm (43 in) wingspan, and weighs 520–790 grams. It is mostly greyish black, with narrow light grey scalloping produced by narrow off white margins at the tips of dark feathers. [13] The scalloping is more prominent on the neck.
Several species have a brightly coloured bare area around the eye and face known as a periophthalmic ring; the large red patch of bare skin of the palm cockatoo is the most extensive and covers some of the face, while it is more restricted in some other species of white cockatoo, notably the corellas and blue-eyed cockatoo. [44]
The citron-crested cockatoo (Cacatua 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 color. The eyelid color is a very light blue.
The gang-gang cockatoo is 32–37 cm (13–15 in) in length with a 62–76 cm (24–30 in) wingspan, [10] and weighs 230–334 grams. [11] They are grey birds with wispy crests. The head and crest is bright red in males, but dark grey in females.
In the 18th century, yellow-crested cockatoos were imported into Europe as pets and these birds were described by various naturalists. In 1738 English naturalist Eleazar Albin included a description and illustration of the "Cockatoo or White crested parrot" in his A Natural History of Birds based on a bird displayed at "The Tiger" tavern on Tower Hill in London. [7]
Joan Gideon Loten had provided Edwards with a drawing of the bird by the Sri Lankan artist Pieter Cornelis de Bevere; [8] the original drawing by de Bere is in the collection of the Natural History Museum, London. [9] The palm cockatoo is, now, the only species within the genus Probosciger that was introduced by Heinrich Kuhl in 1820.