Yesterday I found a really weird object someone had laid in one of the nestboxes. It was the same color as the eggs but had no shell... it was about twice as big as a morning dropping, actually fairly similar shape, too. My grandson said he thought it was intestines! It was quite firm, only a little squishy; I cut it open and it was layer upon layer upon layer of membrane, apparently. No shell, and no egg white or yolk. I have no clue which hen left it there. Is this just one of those weird things that sometimes happen, or is it a sign of something wrong? Anybody ever see something like this before?