I’d try to get a few teaspoons of sugar water in him by dripping it onto his beak and letting it roll down.He won't peak but I think that's in part because his beaks got cracked a little by his nose. He won't try to eat or drink he's just wanting to sit and sleep. His breathing is less fast now but his still whistling and gurgling again.
Then, Can you put him in a dog crate or box with some towels or an old blanket, and put him in a warm, dim room for a few hours to rest?