I have one chick on the way in an incubator, the other eggs look to be infertile. I also have 6 eggs under a broody hen. If 3 or more of the eggs are fertile I will remove one of the chicks (I don't know if I should do that) or the egg if I can't, so the chick in the incubator will have a buddy and the broody hen can have a few chicks to rear, meaing her mother will be a grandmother (but may not be the biological grandparent!). Does this sound like a good plan?