I'm trying to figure out if my cockatoo needs his beak trimmed. His lower mandible seems to overlap the top of his mandible on the corners (almost like canine teeth). His lower portion of his beak also looks really bad (and as of today so does the top).
I think this is probably because his diet was crap before I got him. You can imagine it's hard to take a picture of a close of up a bird's beak without losing your camera, but I included 2 photos. The lowest photo best demonstrates what I'm trying to describe. You can see this is as far as he can close his beak.
None of my other bird's beaks have this sort of overlap, so forgive me if this is a silly question.