First the good: No pain, he lets me play with it without reacting.
The symptoms: He uses it normally on perches/bars though not as confidently or strongly as his left. He is unsteady when on our shoulders because he doesn't grip well with that foot. When he is on a flat surface he curls the foot and walks on the upper surface of the toes. You can see the way he stands in the pictures, and that is how he puts his foot down when he walks.
We will be taking him to the vet for an opinion. I promise had he been uncomfortable we'd have been in months ago. I wondered if any of you have thoughts as to what it might be? My vet is great and would be interested in what you guys have to say.