If we are short of males and need them to fertilize another female they are moved back and forth. Generally the female appreciates being fed by the male while she incubates. However, not all of them need it and some are annoyed by that. We've only had one male agreesive enough to disturb the female during these two weeks. Most are helpful. Our procedure is to leave them there and we find them extremely good fathers when the chicks are born and most of the time they take over when the hen starts to lay the next round of eggs, about the 17th day or so.