6 chickens in one enclosure all of them cornish X araucana. 5 hens 1 rooster. They are 8 months old come spring when I am hoping to do this. What would be the chances that the eggs my hens throw are fertile? Is there even a small chance they aren't fertile having 1 roo to 5 hens in a relatively small enclosure? I've never bred chickens so i don't know if it is like a blue moon when you get a fertile egg or something that is expected when you put a roo in with your hens. Any light you can shed on this situation is really appreciated!