OH good on the other one, he looks OK, Not sure if he can actually get out on his own depends on his legs if they are all twisted up in there. but will need to give him more time.Dark, like the duckling has filled the sac, with just enough room so can see him move. I can see the beak of the other one now. I moistened the membrane with a cotton bud, and he managed to break through a little.
As far as the other, I wonder if that's not a vein if it's where he's getting ready to Externally peep..