I am not sure what went wrong - our bantam japanese mamma hatched out a baby either Friday night or early Saturday am. Baby and mamma were doing good, I checked diligently several times a day to see that baby was drinking and eating (it was). Baby was doing so good, even Tuesday night baby was peeping & drinking water when i went to ck at about 10pm, and then crawled under the mamma. When I woke up yesterday the mamma got off the baby when I came out and it was dead. I am so sad, and don't know what could have been done. We raised about 3 other chickens since they were about 4-8 days old and never had a problem. I have been reading about 'pasty butt', but did not notice that before and the baby did not seem in distress at all. But when I went to bury it, the baby had some stuff on it's vent/butt area, not a lot - could that have been it? Could mamma have smooshed the baby? Now mamma is sad and trying to roost in the hen house (I put her back with the other chickens) on my other chickens' eggs....should I get her a 'new' baby to raise from the feed store? They are getting some 3 day olds today. Please send me some advice...I cried all day yesterday, and feel so responsible that I did not do enough.