Why is it always your favorites? Poor little girl. She was a bantam phoenix hen (i think). In a small coop, which is enclosed on one end (as in, walls, floor, roof). The other side has a roof, hardware cloth walls, and floor. The other four hens have always slept in the enclosed side, she always slept in the open side. No apparent injuries, the coop was not breached. i'm wondering if she could have died from the cold, since she slept alone. It had been very warm here, in the 90's. Then this last week it turned cold and rainy. Last night i think it got down to 45, so not freezing, and no wind. There are pens and coops on either side of this pen, and a large tree that overhangs the roof of the pen, so it wasn't sitting out on its own. i feel terrible. i was actually starting to worry that she might be too cold sleeping on her own, but then figured if she got cold she would join the others. In any case, i'm taking her into UC Davis for a necropsy this morning. And i need to make sure all our other coops are providing enough warmth for my girls. i'm just really sad.