The Yellow Naped Amazon & Yellow Crowned Amazon Parrots are known for their intelligence and superior talking ability. They are ranked among the 3 best talking Parrots. They are one of the few birds that are able to sing in a human voice. Many have seen them perform at Sea World and Bush Gardens, siging opera and other classics. Averaging 15 inches long, these are considered large Parrots. Cages should be a minimum of 24" x 36" x 60"h. They also require a variety of toys that will challenge them. They are wonderful companions and very loyal to their family. We have one breeding pair of Yellow Crowns that are our pets.