Haa, yup. That reminds me. We learned about birds by starting out with a cockatiel. When we got the cockatoo, the much quicker cockatiel would be buzz by the cockatoo on her play gym, teasing the heck out of a huge bird that would kill it if it had the chance. The cockatoo in response could talk very well and tease the cockatiel with disciplinary phases that we would use on both of them. Really entertaining.