Wanted: Any talking parrot,cockatoo, macaw

I have an autustic child who thrives on birds.  He was completely nonverbal for nine years. I bought a little green cheek, who talks very well for this type of bird.  I am looking for something more intelligent.  Several years of teachers and therapists we unable to accomplish what one baby bird di in 2 days.  When we realized my son would copy the bird, we taught Rascal as much as we could, all of which the bird taught my son.  Please consider helping us.  I tried to purchase to birds.  The first one I got taken for $400 and the next time $300, I cant be taken advantage of anymore.  I have a 6 1/2 weeek old female shihtzu that I will trade for very smart bird to increase my son's vocabulary.  Please please consider this. Email or phone 8252824321.  Thank you for reading this.