My Dad insists on vasline since she's also getting cut up on her head from all the feather pulling.
Cockerel is almost a year old now. I still call him that.
Thank you.
(FYI CCsGarden is my sister).
If a cockerel, or rooster, is hurting the hens or making life unreasonably difficult for the hens then I don't keep them.
I don't care how they behave towards me.
If such behaviour is so bad that he needs to be removed from the group then he doesn't go back. Time out, seperate keeeping arrangements etc are not things that I believe work in the long run. In the past I've killed and eaten such males.
Feather loss from the back of the head and feather loss from the hens shoulders and back is pretty common in kept groups of chickens in just about any keeping arrangement. It's a question of degree and the behaviour of the hens.
Chicken kept confined who spend most of their lives in a coop and run arrangement are not able to behave in a natural manner and the hens no longer have in most cases a natural egg laying cycle.
A hen wants each egg she lays to produce a chick; that's why they lay eggs. They don't lay eggs to feed humans. In order to hatch chicks each egg must be fertilized and for that to happen a male and female must mate.
A hen that lays fifty eggs a year will only mate for those fifty days roughly. A hen that lays 300 or more eggs a year will mate at least once every day if a male is present. The possible levels of feather damage is going to be more, for the more productive hen and recovery time shorter.
Another point is in natural breeding circumstances; fully free range in a multi generational group the rooster is liklely to be the same breed or related to/as the hen and thus of the correct size and weight. Large different breed roosters with hens chosen like coloured candy rather than correct size and biology for the rooster is liable to give problems. Most people I've read about here on BYC do not take these things into consideration.
Starting from scratch is also likely to give problems. Any hens and cockerels that hatch won't have adults of both sexes to learn how to behave. Sometimes if the keeper is lucky a group will survive the learning process and the next generation will have a massive advantage in having elders teach the youngsters the ropes.
I don't know the keeping details of your chickens or their breeds but in most case if the keeper got chickens for eggs in the first place and is keeping a confined group then my advice is don't get a male. Therefore, given you are having problems my advice is rehome or eat the male you have and don't get another.