Chick hatched yesterday. Today I noticed the yolk sac about the size of a dime is dried hard to the underbelly. It hatched under a broody so I was unable to inspect it until now. It is walking and eating but the DRIED yolk is covering the vent. If I try to get it off will I pull the chicks guts out? Its vent needs to be uncovered. I searched and searched and all the posts are about new hatches with a WET yolk sac. Thanks in advance for any help. This is my first hatch and I am not sure what to do.