Sulphur-Crested Cockatoo Amongst Autumn Colors
The Sulphur-crested Cockatoo, Cacatua galerita, is a relatively large white cockatoo found in wooded habitats in Australia and New Guinea. It has a total length of 44–55 cm (17–22 in), with the Australian subspecies larger than subspecies from New Guinea and nearby islands. The plumage is overall white, while the underwing and tail are tinged yellow. The expressive crest is yellow. The bill is black, the legs are grey, and the eye-ring is whitish. These birds are very long-lived, and can live upwards of 70 years in captivity, although they only live to about 20–40 years in the wild. They have been known to engage in geophagy, the process of eating clay to detoxify their food. These birds produce a very fine powder to waterproof themselves instead of oil as many other creatures do.