We had a hen sitting. It was her first time, the eggs were abandoned once or twice and they got cold. I assumed none would make it but on hatch day, there were 3 pips. After an entire day I ended up helping a tiny bit. I just broke a tiny piece of each shell and noticed the membrane was very dry and tight. I cut the membrane a little bit. Today, these 3 day old chicks are looking pretty good but one has absolutely no feathers on its back and the skin looks red and sore. One other chick is missing a patch the size of a nickel and the 3rd is fine. Not sure if we should cull the bad one or not. it seems fine otherwise.