Yellow-Crown Amazon Parrot. Meet Cisco. Amazons are smart birds. Cisco is not messy, does not throw food and potty trained herself. She only potties in her cage. Related to the Double Yellow Head Amazon but are a little smaller and calmer/less aggressive than the larger Double Yellow Headed, Yellow Napes, etc can be. Amazons are very expressive and easy to read if you pay attention. Awesome birds and pretty to boot.