I want her to start laying eggs again, but her chicks are now 13 weeks old and she is still mothering them. I thought mamma hens stayed with chicks 9 or 10 weeks tops. Why is she still with them, is it something to do with it now being winter? And is there anything I can do to get her to stop mothering them as I am low on egg layers at the moment. Mother is a silkie cross light sussex, has 2 chicks that are mutts, both roos. They hardly fit under her now, although they are a little on the small side.