Yes - just the 'clearish tip part' - stop short of any pink. If any bleeding occurs, needless to say, you have gone back too far. Styptic pencil, silver nitrate and other available products can stop the bleeding.
Wow, I have never seen a beak malformation quite like that. Generally such conditions are genetic in origin. It would be impossible to trim the upper beak back to match the lower beak. From what I can see, it appears that the quick (fleshy part of the upper beak) extends beyond the lower...
Cut the upper back in increments. You want to cut back to the quick but not into the quick. Providing a deep dish filled with feed sometimes enables these birds to eat more readily. It almost appears that this malformation my be genetically linked to other problems as such birds very...