If I were to reintroduce either or chick, how would I go about it, and how would I get my chances of her accepting the baby up???
Again, much depends on the broody. Most folks recommend slipping chicks under a broody in the dark, so she can't see it. I slip them in under her tail. Then by morning, they have usually bonded enough that she will let it stay. I have also taken chicks to broodies in daylight, because I trusted the broody and wanted to watch the introduction, for the chicks safety. But that's more risky with a first time momma.