I'm currently looking at a few birds to adopt, and one bird in particular is 30+ years. (They think early 30's, wild caught.) I'm interested in what you all think about the likely hood of teaching him new things. I plan to integrate interactive brain power toys into the play time of whatever bird I get, but I'd really like to be able to teach my bird new words. He's a Yellow-naped Amazon by the way

!! Another bird I'm looking at is a cockatoo, who is 20+ yrs.

What do you think? Can you teach a fully matured bird new tricks and words?
Thanks!