comprehending Cockatoo Parrots available in Australia course: Aves (Birds) purchase: Psittaciformes Family: Cacatuidae Subfamily: Calyptorhynchin Subfamily: Cacatuinae Genera: 5 Species: 20 LIFE SPAN (Cockatoo Parrots) approximately 60 decades or for a longer period, based on the species. Some cockatoos in expert treatment have lived in excess