The are 372 species of birds in the order Psittaciniformes divided into six families. This six families are grouped  into three superfamilies: Cacatuidae (cockatoos), Psittacoidea ( true parrots) and Strigopoidea (New Zealand parrots). These birds are on average long-lived with some species living up to seventy years old. The order is characterized by a prehensile  beak that is both strong and manipulative. Also, the toes have a zygodactyl arrangement with two toes pointing forward and two pointing backwards. Mostly a tropical order, members  can found from southern North America, South America, Southeast Asia, Australia, and sub-Saharan Africa.