My first broody, a Black Australorp, cared for her chicks for about 4 weeks then she was off on her own. My second, a Buff Orpington, stayed with her chicks for 8 weeks before I separated them. My third broody, I separated the chicks after their 3 day with momma so that I could bring them inside and get them acclimated to people. Momma was frantic for about two days and then was back to her old self, chicks completely forgotten. My fourth broody, quite setting after 8 days on the nest. I think it just depends on the individual bird. Some may not even care for them from day one. If you don't mind the upset (it doesn't last long), you can separate the chicks from momma and hand raise the chicks yourself so that they are more people friendly. Good luck