I also have a broody hen, found her sitting on a clutch of old eggs from another hen but unfortunately the eggs are not fertile. I removed the old eggs and put fresh fertile eggs under and she pushed them under her. This is her first time going broody so I hope she sticks with it. I have another hen that refuses to lay in the nest boxes and free ranges all day, I have to hunt all over for her eggs and when I finally find them there are 10-14 eggs. These eggs are not fertile and I know she will set on them when she is ready, so I keep taking them when I find them.