Unusual Bird: Female Cardinal with Beak Deformity

Photos are of a female Cardinal with damage to or a deformity of the beak. This Cardinal has fed at the feeding station all season. She was able to mate had one offspring, a male. She brought offspring to the feeder after he could fly and was able to feed him. She does not appear to have any difficulty eating. There is some short video available that better details the deformed beak.