We just have the 2 chickens, and had them for 2 years. After a short spell of hot weather here in the UK Thursday and Friday, especially at night, one of them hasn't been well at all. Her poops have been very watery, although yesterday they were getting more solid, but this morning she is worse, and it has cooled off a lot since Saturday. She ate quite well yesterday and was taking a bit of interest ever now and then, but she isn't interested at all this morning. Any advice would be appreciated, thanks. I tried giving her some yoghurt yesterday as well, thinking that might help. She last laid an egg on Friday, although it was a soft shelled one, probably due to the heat. We did our best to keep them out of the sun, and kept the garden watered and plenty of water about. Both birds haven't eaten as well since the hot spell, but the other is fine.