My three year old cockatiel was perfectly fine yesterday. Today when I took him out for a flight, he fell downwards and crashed into the wall. Picking him up, I realized that he was holding his right wing away from his body. He is normally a very strong flier, and is able to fly around for several minutes without tiring. There is no bleeding, and he is able to preen it, but he is still tucking it away from his body and screaming in pain. I can't take him to an Avian vet because the nearest one is a couple hours away. I have normally cured all his problems at home(blood feather, bleeding,etc.) but I am unsure what the problem is. Help!