comprehension Cockatoo Parrots for sale in Australia course: Aves (Birds) get: Psittaciformes relatives: Cacatuidae Subfamily: Calyptorhynchin Subfamily: Cacatuinae Genera: 5 Species: 20 LIFE SPAN (Cockatoo Parrots) approximately sixty years or extended, dependent upon the species. Some cockatoos in expert care have lived over a century!  YO