I'd say keep him warm and calm for now. Is anything bubbling out of his beak? Excess liquid, or anything like that that you might be able to suck out with something?
Oh, gosh.
@Overo Mare, any idea what it could be?
Is he injured anywhere? Any discharge from his beak or nostrils? Is he gasping or choking? Is there anything in his beak that might be obstructing his airway?