My Buff Orp went broody a week ago, and I gave her 6 fertile Wyandotte eggs on Thursday. She's a committed mama-- never out of the nest unless I kick her out to drink-- but the other hens keep sneaking in and laying their eggs with hers, and apparently one of the fertile eggs got broken. I checked on her this morning, and egg had dried all over the eggs she was sitting on and some of them were glued to her underside. I pulled them off of her, rinsed them off under slightly warm water, and put in fresh bedding... but now we only have 5 fertile eggs and I'm afraid none of them will hatch. I've heard of slipping some new babies under mama around the expected hatch date of her eggs... can I do that? Even if some of the 5 do hatch, I'd love a few more just to make sure I get 2 or 3 hens that I can keep. What are the rules on adding babies? How many can I add? There are plenty of people selling chicks around here, so I'll undoubtedly be able to get some new babies around June 2nd when our babies are due. Oh, and we're building an enclosure to keep mama separate now so the other hens stop climbing in with her.