Sulphur-Crested Cockatoo Colors and Markings Sulphur-crested cockatoos are primarily white with black beaks. They sport a lovely crest of yellow feathers in addition to their heads. It's got a yellow wash around the underside of its wings. A cockatoo’s price also fluctuates based on market place demand from customers. https://crowfootg169lxj8.blogoscience.com/profile