I've never hatched eggs in an incubator or had a hen hatch her own. But right now, I have some eggs in the incubator and a broody Dark Brahma banty sitting on eggs in the coop. Her name is Pigwidgeon, or Piggy for short. I remove the eggs from her but next time I check she's always on some other eggs (hers and her roommates' eggs). Some of the eggs may be fertile, so I actually could let her set. But I am going to separate the incubator chicks into two groups anyway and would actually like Piggy to raise some of them. Right now she's in a busy coop but I will be able to give her some more privacy in another week or so. Could I put Day 18 incubator eggs under her instead of finishing them in the incubator? Or does a hen need to set on the eggs longer for any reason? Or, should I wait till the incubator hatch and put new chicks under her? How and when do you put eggs or chicks under a broody so she'll be likely to raise them as her own?