First off, let me start by saying that I did not help this baby to hatch. I noticed it when I took the babies out of the bator, and it is the only one with this problem. Anyway, I don't think it's the yolk sac, this is more red looking, almost like the intestines? Will the ducky die, or will it finish going inside? Anything I can do, or should I just let nature take its course? Thanks for any help
Mine had this and it dried up and fell off in a couple of days. Hope this is the same as yours. I think it is like an umbilical cord?