The natural wear and tear that your bird puts on its beak during daily feeding, climbing, beak-grinding and playing is usually enough to keep your bird's beak right where it should be. Occasionally, however, a bird might have physical limitations or deformities that make self-care of the beak impossible.
Malocclusions are one such case.
This can be due to birth defect or injury. Certain illnesses , such as fungal infection or mite infestation, can cause beak-growth problems, too. Injuries are yet another cause of beak-growth problems. For example, Seymour, the bird president of Birdmart. Com sustained an injury to her skull many years ago.