In Australia, sulphur-crested cockatoos have adapted very well to European settlement in Australia and live in suburban habitats in cities such as Sydney. These birds are naturally curious, as well as very intelligent.
They 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. The sulphur-crested cockatoo is a seasonal breeder – in southern Australia the breeding season is from August to January.