Mid-morning I see Little Sister squatting on the ground outside the broody box. Just squatting. Presumably, the chicks are tucked beneath her. Sure enough, after I take some photos, she gets up and 4-day chicks spill out from under her wings and legs. She walks the chicks back to the broody box, showing them some food along the way. Then they settle back down in the nest. This is one cautious momma hen!