Cockatiel losing lots of wing feathers.

by Vivian
(Illinois)

Hi, I've had my cockatiel, Dusty for 9 years now and just at 4 am (Which was about half an hour ago as I'm typing this) I woke up to hearing him fall in his cage. I got up and checked on him and he quickly climbed onto me. I then noticed he had tons of his feathers from only his wings gone. I don't think it's molting, he has never molted like this. I am very worried and nothing like this has ever happened. He seems okay now, he is grooming himself and trying to sleep.

Thank you for your help.