I went to the coop to find one of my hens dead in her laying box this morning. I got these 3 hens from a neighbor that had to move to the city-she let them freerun and put them up at night- I have had them about 3 weeks-letting them free run occasionally. She had been getting up in the box and would cluck away while there -matter of fact my husband and I watched her thinking she was laying an egg the other day-not! anyway,she has been eating fine and running around like nothing is wrong-the 3 hens are very healthy and beautiful feathers -no molting. My friend said she was only getting 1 egg a day when she gave me the 3. All I have gotten is one egg since I got them which didn't bother me given the time of year. This particular hens vent was open about an inch and a half with pink fleshy looking stuff trying to come out when I found her. Since she was already gone I cut her open-no eggs or any sign of them -really didn't see anything that alarmed me--but, I haven't had chickens in years nor butchered any in years so maybe some of her organs could have been compromised and I wouldn't recognize it. Was wondering if any ideas. She was around 3 years old.