My father-in-law has a Broody Americana that has been on the nest for the last three months. We don't have any roosters and we can't seem to break her of it. I was wondering if I should put some fertilized eggs under her. A local person is selling fertile eggs and I really want the chicks from them. Should I risk the eggs under that hen or should I put them in my incubator? My incubator is very old. A family member just gave it to me because their last hatch was two out of 28, But they didn't know how to gauge humidity. What do you think I should do?