To be honest, we have an incubator, and haven't had a great success rate with it, even with our own eggs. I still find a broody hen the best for hatching eggs. We used to have a chicken that was the most fantastic mother, she lived until she was 12, and she would happily rear 3 or 4 broods a year. She would rear anything, we sometimes used to put Indian runner duck eggs under her- you should have seen her by the time they were 4 weeks old, she'd be perched over them spreading her wings out trying to cover them all! So funny, I still miss her though.