My shipped eggs are supposed to hatch between Wednesday and Friday. I have baby chicks coming from Welp on Friday. I have two Broody hens that have been sitting on my shipped eggs. I only have 12 eggs and I don't expect more than 6 to hatch. So with that said, one hen is a Buff Orpington and the other a black bantam. How should I proceed in giving the mommy hens some additional chicks? How many chicks can each mommy hen have??