ocr: PARROTS Beak POWERFUL MUSCLES ARROTS LIVE MAINLY on plant food. AROUND SKULL They use their hooked beak for cracking These enable the bird's open seeds and nuts, or for biting off fruit beak to exert strong force or flowers. The upper mandible is much bigger than the lower, and it can hinge upward. It ends in a LARGE UPPER sharp hook that the parrot uses MANDIBLE when feeding and climbing. The upper Aj parrot's tongue is also mandible fits important for feeding; in over the lower some species it is long, whereas in others it is short and fleshy. SHORT LOWER MANDIBLE
