This is my BA hen. She's setting on 16 eggs. She started setting with the first egg and over a week the other hens added to it. I also put a handful of MFD eggs under her. here she is in the nest box she started with (above), and then I removed a divider and look what happened... There are 7 babies (2 MFD's) today. She's not budging, so I gave her a handful of food and some water. She was teaching the babies to eat and drink while she's still setting on the other eggs.