After the passing-away of the albino gorilla at Barcelona, I would say that the next-most photographed animal in the whole zoo would be the king vulture.I once heard a comment which I suppose is a joke - the Barcelona bird has been more often photographed than the King of Spain (although the zoo attendance figures of many thousand daily make me think).Actually , he was purposely installed into a mesh-free enclosure with a water moat so that visitors would have an unobstructed camera shot.An amazingly charismatic bird.