So sad, I lost one of my black sex link hens yesterday. She was about 9 months old. I put them in the coop the night before everyone seemed fine, in the morning I went out to open their run and feed and I found her squatting in a corner, I thought maybe she was egg bound, I picked her up and stroked her she was receptive, so I left to go prepare a epsom salt bath and get some KY, I returned to the coop about 10 minutes later and there she was dead. It was so fast the day before she was just fine by all outward appearances. It made me feel so bad.