I'm not sure I'm asking in the right forum or the right way. If I have a Roo and he is mating with my hens my hens have eggs, how do I know the eggs will be baby chics. Should I leave the egg under the chicken should I retrieve the egg and use it for food? I know I don't have to have an incubator and that the hen can hatch chicks but how do I know the egg she lays will be fertile to hatch? I hope I'm asking this the right way....