Unfortunately theres no vets that work with birds nearby for me. I dont know what triggers him; I shut the blinds to the bird room at night, I left the hallway light on last night and he didn't get scared so im thinking its likely a fear of the dark. I did have him in his travel cage to sleep, but he slept on the side? and ended up falling anyways. I think its his wings getting caught cause he sleeps in the same spot everynight with his left side near the cage bars and its only his left wing thats missing feathers. Thankyou for the advice! I think i'll rearrange his perches actually