That's Awesome! I have only tried it once and she attacked the chicks.Update:
We had three hatch inside the incubator so far. We also had two hatch outside to the broody hen for a total of 5 babies as of 3:30 pm today. We introduced the inside chicks to the momma hen and she took them without a problem. They are doing fine, and very, very happy to have a warm mother instead of a heating fan!