My Dominique’s just hatched and it’s my first time hatching chickens. I’ve hatched quail before but have never had this happen. I think the umbilical cord is still attached on two of them. One of them has it hanging out it’s butt and the other has it hanging out and attached to the egg. They haven’t even been hatched for a full 24 hours but is this hurting them? Will it come off on its own or should I remove when I take them out of the incubator? There’s also a little bit of dried blood on the paper towels I placed but i don’t know if it’s from them or not?