being familiar with Cockatoo Parrots available in Australia course: Aves (Birds) buy: Psittaciformes relatives: Cacatuidae Subfamily: Calyptorhynchin Subfamily: Cacatuinae Genera: 5 Species: 20 LIFE SPAN (Cockatoo Parrots) as many as 60 decades or lengthier, dependent on the species. Some cockatoos in professional treatment have lived above a