So we have this hen and Tom of different breeds for going on our fourth year. They have been acting fine and seem to have tried to mate in the past although this past year she didn't lay eggs and the year before her eggs were not fertile. Yesterday out of nowhere they started fighting with each other her head is all beat up and they go at like a couple of toms. Any suggestions other than keeping them separated, that seems like a lonely life. The hen is also making a different noise than I have heard before..Any ideas??