Is it possible that the chicks have shrink wrapped? I hear chirping and see movement in one egg, nothing in the other - it is day 20. I am using an LG, still air. When I went to bed a couple nights ago - Day 18, it was at 70%, everything looked fine. The next morning it had dropped to 46% and everything was dried out! Not going to start my rant about LGs (this is the last hatch in this thing)....I just want to know if this drop could possibly cause shrink wrapping in chicks that have not externally or probably internally pipped (at that time). I have read conflicting things about shrink wrapping. Some said it could happen only if you had an external pip, others said it could happen at any time. Also, does shrink wrapping mean the outer membrane or the inner or both? Oh, I was able to get the humidity back up slowly that morning and maintain it.