It is too hot in that fish tank.I've cleaned up his pasty butt and separated him from the rest of the flock. He is staying in a 10 gallon aquarium with a heat lamp on him in my home. I am giving him miracle water (garlic, apple cider vinegar, and honey). He has access to food and has already pooped twice since being cleaned. He is part of my first flock of birds ever, I have not added new birds (yet). I did not hatch him or his brothers and sisters, I got them from a breeder at two weeks old. I do not own any other birds, however, my neighbor has chickens. Why do you think his wings look so bad? Oh, I also sprayed his wings and the irritated skin on his bottom with Banixx for Chixx wound spray.
You don't need to cook him.
If he is inside your house I am sure it isn't too cold for him.
Stop the miracle nonsense.
Plain fresh water is better.
What feed are you using?