I already have a cockatiel that I have had for about 6 years. He can say his name, whistle tunes, and make a chattering noise. I want to get another bird, preferably a parrot. I need one that is easy to train and isn't aggressive. I realize that all birds are different and the one I get may never learn to talk or may be really aggressive. But from the overall breeds I want to know which one I should get. I want a breed that can learn to talk really well and maybe do tricks and that likes to be handled. Size doesn't matter. Thanks!