I hatched some chicks in my incubator. Two of them hatched today which was day 21. The other two are are scheduled to hatch monday. Both chicks that hatched had very rough navels. One died about an hour ago. The other looks fine so far but has a small thread of dried stuff connected to a larger piece of dried up stuff hanging from the navel area. What should I do? Im afraid to cut it off. Here is a pic it's not very good though. It is a silkie chick. I have two more eggs to hatch on monday. Is there anything I need to do before they hatch. Really hope this little guy makes it.