I went out to my coop this evening and found my smallest hen lying dead in the coop--whith her eyes shut. She had not been laying an egg everyday for the last couple weeks, but other than that she was showing no signs of illness that I could see. Yesterday she was running across the yard with no problems. Now that I think about it, the last few days she was acting weird and wanting to dust bathe in the cat's litter box on the patio. I use compressed pine pellets that swell when water is added and she was pecking around in the litter box. I kept "shooing" her out and off the patio (fence is getting put up tomorrow to keep the chickens off my patio), but she wanted to run right back. Should I be worried about the other chickens? I did find a California Kingsnake in the yard, but they are harmless. I'm so sad, as she was my sweetest chicken... Any ideas? Thanks!