Pionus tend to be rather reserved, especially at first. They are careful and observant - they will watch you very closely, working out for themselves whether they can trust you and whether they want you in their flock. They like being given the time to make up their own minds; you can't rush them or force them into something they aren't sure about. It took my girl a month to decide whether she trusted me, during which time I was entirely hands-off. I'm happy to say that she decided that I was acceptable, and our friendship is a beautiful, special thing.
Pionus love headscratches, and a pi that has decided to be friends with you will bow their head for scratches. Leia loves having her eyelids and around her beak gently rubbed, and she preens me in return. They tend not to be a cuddly bird. They prefer to be in the same room as you, but are usually happy doing their own thing. They do thrive on ambient attention so you still need to give them time with you. I'll tag in
@Dartman,
@finchly and
@Eloy who have had Pionus for years, and
@Lincee who is still making friends with his.
Pionus are sensitive to the bird dust produced by your Grey. Ideally you should keep them in separate rooms with a HEPA air filter.
@finchly also has caiques. They two species could not be more different. Caiques are much more in-your-face, high energy and bolshy, they do tend to like physical contact like wrestling with your fingers, and can have a tendency to aggression.
@Laurie and
@Irishj9 are both experienced caique keepers.