can't really do much else
if it maks it through the night you have won 1/2 the battle
shock and interbal injuries are the big killers
the eye and blood in nostrils possibly suggest a good bang on the noggin
so it is a waiting game to see if it can recover itself
warmth quiet and a bit of energy which you have done
ps a bit of marmite in warm water can work to restore vitB which birds use up when under stress