I had 2 red parrots over 30 years ago. I can’t remember the species name. They used to flex the metal bars of the cage when they were bored. I had to bought heavy-duty gloves to handle them even than one of them bite me on my left pinky with the gloves and pierced the glove and my finger. Of I haven’t got the gloves on I’m pretty sure it would have ripped my finger off or caused severe injury.