how to choose a companion for my IRN

[Makailaann]

I have a 4-5 yr old male ringneck. Recently we lost his companion & he is not taking it well. He has started to chew on his tail feathers & is just generally unhappy. We would like to get a new companion for him but I am not sure if a male or female IRN would be better? Also would a younger bird (<1yr) or one closer to our bird's age (4-5yrs) be better? Any suggestions?
Thanks!

[julie]

Is there any other species you like? I had a rainbow lorrie aswell as my boy,the lorrie was pretty full on but they got on ok (not kept in same cage). I now have an alexandrian that lives in the same cage with my older irn and a young irn.
It depends a lot on the birds personality to how they would cope with the new bird so its hard to say get male or female.

[Makailaann]

We are thinking either another IRN or maybe a quaker parrot. He was with a african grey when he was a baby before we got him. We had a cockatiel with him most recently, both were females.