Dusty

My mourning dove Dusty, He is 14yrs old. I raised him as an orphan when I was 14. He was to be released but that didn't pan out. He has been my greatest joy in life and has always been a healthy bird except for a little bald spot on his neck which came about 3yrs ago. He also has entire room to himself. Occasionaly he gets little growths on his beak that fall of on their own and then come back a few weeks later, they don't seem to bother him, any ideas?