Ya, yuck. That's the cord and membranes. The navel is a bit open yet. You can put a damp paper towel in the bator on the screen floor and put her on that and wait it out, or tie it and cut it off closer to the navel. If it's still there, just don't pull on it.
Like this??
My expertise stop at egg colors...lol I can tell you what lays blue and green and Spitz and leghorns are white, much more than that, I'm lost...lol A good share of my flock are mixes, so I never know what I am going to get....lol
It doesn't sound to confident that they will make it, if they had any chance of surviving Id really carefully open the egg up where the air cell is, but if you see any bleeding wrap a warm damp towel and put them back in the incubator. If you dont see any bleeding carefully (and i mean carefully) go through the opening and open up the sack, tap the outside of the shell and listen for any chirping (Who knows you might get lucky) if you here some then put it back in the bator and see what happens. But if not, its probably a quitter, and you might want to dispose of it, if you are curious you can open it up and see what happened to the little guy, but at this late death it might be hard to do so.
