Or let them set with the flock, mark the eggs you want them to hatch and remove all others every day.We managed to candle one nest while she was off, and there was about 7 that had some kind of development. Now I'm waiting to see if she will go back to it. The hen on the other nest doesn't get up as much. I thought it would be less work to let them brood, but now I think I may just go buy an incubator for the future. Or block off the hens.