Something has been damaging my eggs. The first thing I noticed was a clear liquid, similar to thick water, on some of the eggs. Then I started noticing a single line about 2" long in the shells like someone had taken a sharp knife and scrapped off a bit of the shell. It doesn't look like teeth marks from a rodent. It's a perfectly straight, smooth line. The eggs aren't broken or cracked. Today there were several eggs like that. Plus, there were remnants of a yolk and a small bit of shell in the nest. I've noticed this both in the morning when I let them out and in the afternoon when I gather eggs. The girls have access to the coop 24/7. A few weeks ago, I caught a field mouse in the coop. I knew he was there because I feed the girls scraps from the bread store. I give them half a bag of bread in the morning then leave the other half on a ledge they can't access. The field mouse was nibbling on the bread. No evidence of that happening lately. Plus, I'm thinking if it was a field mouse eating the eggs I'd have seen yolk and shells before today. No way they're big enough to eat an egg whole. Any idea what would be doing this?