If you decide to keep him He may become used to you but never let you hand feed him. Only time will tell. Clearly he has a strong constitution and this is something you want in your birds. He is pretty and must be looking for a job protecting your flock. Rome wasn't built in a day so you have to make a list of what your expectations are to having a rooster. Eventually the girls will get used to having him around and he will go in with the girls. If you have children see how he behaves around them or you after a time. If things get rough you can always rehome him. Nothing ventured, nothing gained.
If you don't decide to keep him call a friend who can help catch him.
If you don't decide to keep him call a friend who can help catch him.