I truly hope is indeed nothing to be concerned of and that is just unlucky he got ugly footAlthough the skin on your baby's toes looks unusual. There is nothing about them that alarms me. There is no redness, no sign of irritation, no indication of cracks through to the flesh, no suppuration. The pattern of the skin is similar to other macaws I've seen, only with the bumps more prominent.
The macaw feet that I'm familiar with have almost smooth areas where they have been worn down and other areas where the bumps are more prominent and not worn down.
I would certainly consult my vet again if I wasn't happy with his first answer.
He does claims a lot aorund his cage and likes to do it so much so I hope is related to that and nothing else…
thank you for your answer