We are urban farmers with only three adult hens in our flock currently.Over the years we have struggled with introducing young hens and hand-raised chicks to our flock. We have a broody hen right now and just bought a dozen fertilized eggs for her to sit! Looking for advice. Assuming we actually hatch some will the mom be able to keep them safe? Not worried about predators, just the other chickens. We free range 24/7 but can close the coop. Dogs are good.