I work at a camp, but I'm not on site every day. One of my hens is walking very slow and has a swollen abdomen that feels warm (warmer than a normal chicken temp). She has poo in her feathers too. She looks puffy eyed and keeps shaking her head. What do you think this could be? We are in Washington and the smoke has been terrible for the last few days, but it has cleared up a bit as of today. She also has free range of the area. She lives with goats, sheep, and a llama. None of the other chickens are acting strange.