I have 4 hens. All approx. 9 months old. A SLW, BO, Barred Rock, and EE. My EE stopped laying eggs about 3 weeks ago. I assumed because of the time of year. She stopped squatting around the same time. Other than those changes she has seemed fine. She continued to eat and drink regularly. They all stay in their coop and run when I'm not home and then free range the backyard when I'm home. Today my husband got home early and went outside to let them out. The EE didn't run out and upon checking the coop he found her dead. My husband didn't want me to see her but he looked at her himself. He said other than some discharge from her beak she looked fine. No sign of her being egg bound. Her crop felt normal as well. Any ideas what may have caused this? She was my favorite, but I am really concerned for my other three hens. Thank you.