So tonight is the night! We are going to combine our four Cuckoo Marans (about 14 weeks old or so) with our year and a half old Buff Orpingtons. We think they'll be able to hold their own and we're going to do it at night while they are sleeping so they just wake up together. My question is about food. The Marans are eating All Purpose crumbles. The Orpingtons are eating Layer Crumbles. I don't want to put the Marans on Layer Feed until they are laying. Can the Orpingtons be switched to All Purpose until the Marans are ready for Layer Feed? If so, what should I give them to supplement the calcium loss? Or, is it better to keep them separated? The Marans are in our goat pen while our goats are off being bred. I think the goats are coming home this week, so that's why the combination of the flock.