A cockatoo is any of the 21 species belonging to the bird family Cacatuidae, which falls under the order Psittaciformes (parrots). Cockatoos are found mainly in Australasia. They have showy crests and curved bills. They are usually less colourful and larger than other parrots.
Pet cockatoos are often very affectionate, but tend to demand a great deal of attention. They are intensely curious, and need a steady supply of objects to tinker with, chew, dismantle and destroy. They have a piercing screech, and employ it often.