Ditto for everything written here, and one addition:
An older bird (something more than 12 or 13 years old) may be a better choice than a younger bird. Yes, babies are cute. And then they grow up and turn into teenagers and become a huge hand full, especially during mating season. And then they become adults and hormones don't sway them as much, and they're more even tempered. My BFA is somewhere older than 16, and his temperament is more even year-round than younger birds I've seen. He still gets more cranky and is more excitable during mating season, and he still looks for a place to nest, but he doesn't completely change his attitude the way a younger bird will do.