Birdygirl you could use a dremel to trim it and make sure you check his top beak to make sure there is not over growth there causing it to push his lower beak out or visversa
Hi not sure I saw this posted as a comment but her it goes. When you have the cross beak make sure you check their upper beak. It may be that the upper beak is not growing correctly and pushing the lower beak out of alignment. I have this with one of mine and at first I just thought trim the...