My hens will likely take care of them for about 6-8 weeks (not 100% sure... never really noted it before). Once the chicks/pullets seem to be more independant my one hen, the Frizzle, beans them on the head and then she is done! She heads off to perch on her own and starts laying another clutch( though they are never fertile). The young pullets have to learn to manage on their own. I find hens raised by a mom are more "worldly".... they just seem to be able to forage better then those raised under lights.