I have 6 chicks right now that I do not know the sex of. When they grow up and I know for sure, I might decide to keep one rooster. I have no idea how the egg laying process goes though. Will the eggs the hen lays every day be fertilized if I have a rooster in with them? My chicks were all in a box with about 5-6 others, so I don't know if they were from the same batch. Does it matter if say a rooster fertilizes its hatch-mate? Please help me out!