Since people wanted to know.
Day 2 of the bird's care revealed he has heavy head injuries and obvious swelling in his brain.
It's something we just have to give him time to work out. He was bleeding from his nares for about 3 days but that has since cleared up and he's breathing better.
He regained vision back in his left eye but still has none in his right. We're unsure how clearly he sees out of his left eye but he does see movement out of it for sure.
It's been almost a week and we are still force feeding him chopped up rats since he won't eat on his own (this consists of one person holding the bird while the other forces his mouth open and stuffs pieces of the rat down his throat). He has gotten to the point where we don't have to stick the food in the back of his mouth to force him to swallow. As long as we get the food into his mouth he does willingly swallow it on his own.
He does play around with his water dish and perches sometimes but not very well.

We're unsure if he'll survive at this point but we won't give up on him. Some birds make a full recovery from head trauma and some don't.