And this is what I was talking about. The outter membrane should be nice and papery white. That membrane lines the shell...BUT the inner membrane hugs the chick. That is 100% normal. I think a lot of people see this and freak out thinking that it is shrinkwrapping the chick because what do you hear on here the most...shrink wrap shrink wrap shrink wrap. And I will argue this until the day I die. Chicks do not shrink wrap that easily. Shrink wrapping is when all moisture of the membrane is gone and the membrane pulls taunt against the chick. It will literally pull the chick down with it as it shrinks. Think about untreated leather when it gets wet. As the leather dries it shrinks up becomes tight. This doesn't happen in a matter of minutes. It takes a while for this to happen. A chick that has pipped has a greater chance of the membrane that is exposed drying and gluing itself to the chick at the area of exposure. Now a chick with a normal pip in an incubator with adequate humidity can be pipped for 24 hours w/out drying out to a point it will cause complications. The more membrane that is exposed, the longer it is allowed to be exposed the greater the risk. My number one reason I wait till 18 hours to make a pip hole bigger, because once I do, that membrane has more exposure and greater risk to drying out. If at any time be it 6 hours or 16 I see an outter membrane turning brownish/yellow, (the sign that it is drying out.) I will pull it out moisten the membrane and check the inner membrane to make sure it is not adhering to the chick. I have started to prefer using neosporin on exposed membranes cause it does so well keeping them moist. Even in an incubator with high humidity (I think more so with forced air), if you have a large amount of membrane exposed-even if you do not open the bator, it can still start drying out.
I have NEVER had a pipper or zipper shrink wrap (not saying it never happens, mind you,) and I am constantly in the bator during hatch as I pull my hatchers as they become active and take out shells and flip over pippers that have been knocked.
My shrink wrap occurances have happened after lockdown- normally at draw down and before it can pip. I have had at least one that was able to internally pip, but was shrinkwrapped and could not progress past there. It is my belief most true shrink wrapping happens from either too much moisture loss over incubation causing the membranes to dry too much or at draw down when draw down is extreme. I am going to post pics of shrink wrapping so you can see exactly what I am saying. So here's my spoiler alert. I will put them in a seperate post so if anyone doesn't want to see it, here's your warning.
As long as there are prominent veins, there's not much you can do. That looks perfectly normal to me. I see absolutely no signs of shrink wrapping. (Just remember any time people give advice from a picture, you are the one up close and personally, so your judging is more important than ours.)
i am actually fully on board with your thought process!! it makes so much more sense to me that the membrane containing all of their blood vessels would stay close to their body. and the few dead chicks i've pulled late in the hatch, all of them came out with the inner membrane well attached to them. and it also makes a lot of sense to me that if the feathers aren't sticking, if it's still stretchy, etc, the chick should be strong enough to move it. this is not necessarily making me feel better about my overall hatch, but once i got my wits about me this morning i kept thinking that at this point, really the only important thing is making sure the membrane stays pliable. well, and that it's warm and there is available oxygen. but this makes a LOT of sense. if the chick isn't visibly sticking to the membrane in such a way that the chick can't move or is being pulled, if the chick is peeping, breathing, membrane is stretchy and clear, let it be?