Cacatuidae
Nota de aplicación
Members of an order of Psittaciformes containing 21 living species found in Australia, New Guinea, and Solomon Islands, characterized by a curved beak, a foot with two forward toes and two backwards toes, differing from true parrots in having a showy movable headcrest, the presence of a gall bladder, and coloration that is white, black, or gray with touches of red or yellow rather than the bright green and blue of true parrots.