We have three broody hens right now. Two of them have hatched eggs. One hatched three black (Barred Plymouth rock/Bantam mix) babies and one hatched a single yellow (Brahma/Bantam mix) baby. They are both good mothers to their own chicks. Today the four babies and two mamas ended up in the same area for a moment. The mom with the three babies started attacking the yellow baby that wasn't hers. She kept going after her but I finally got to them and pulled the baby away (who was not badly injured). The mother of the yellow baby did nothing to protect her and actually ran away. Is this fairly typical? Will I need to keep them completely separated? They are only about 2 days old and the moms are still sitting on eggs.