so I have a 5 month old Silkie rooster, Zaylia (Mullet man),and he has become very aggressive within the past couple months. he has grabbed the hens neck from across from them and almost like shook them and just held them there, he has attacked all the kids in our family (4) multiple times, chases us and jumps at us. he isn't scared of us anymore; even with shovels or sticks. once we noticed he was getting more and more aggressive towards the hens we separated him from the other chickens. we keep him in a coop that is just fenced around and has a wood roof. we let him free range a lot, but it is very hard to get him back in his coop. we tried giving him away but when we let him with the buyers chickens he attacked them ansd it took us around 3 hours to get him back. its going to start to get cold where I live and at night don't want him to freeze. what should I do?