I opened a few of them and they don't seem to be shrink wrapped, but there's not any visible blood in the membranes either. I guess I'll watch a little longer and see what happens with these that I opened
Hi all, I currently have a batch of duck eggs in the incubator (d26). When I locked down the incubator yesterday, I noticed that about half had already pipped, and yet no one has hatched yet, 30+ hours later. They're still alive, the eggs are rocking and they're peeping in their shells, but...