He is on his feet, so his body language is telling me he is possibly ill, fatigued, and probably depressed.
When a rooster takes a severe beating or even suffers an attack from a predator (had this happen, too), they suffer emotionally. There will be a loss of confidence, and in the days to follow, he may be fearful, but, he can heal from this too.
Take a look at this sweet video, about a rooster.
www.youtube.com/watch?v=n6JZlsQwW2Q
When a rooster takes a severe beating or even suffers an attack from a predator (had this happen, too), they suffer emotionally. There will be a loss of confidence, and in the days to follow, he may be fearful, but, he can heal from this too.
Take a look at this sweet video, about a rooster.
www.youtube.com/watch?v=n6JZlsQwW2Q