Just now I went out to say goodnight to my chickens. One of older hens didn't look settled in and then flew down from the roost bar and went outside. I thought that was strange cause when they are in bed they are in bed! I started doing my nightly chicken chores and watched her kind of slump down and get puffy. I was like, oh no she is sick...Then she stood up in front of me and there was another egg. She immediately went to eating it! The shell was very thin but the egg itself looked fine. What the heck I am dealing with now! It's been a week of chicken drama. She did lay an egg this morning. I only have 3 laying at the moment so that is how I know she layed a perfectly normal egg this morning. Any thoughts would be much appreciated.