Thank you for all your information. It seems I have been having the same thing. I saw one hen drooping on her roost this am I removerd her and saw all have the spots. I thought they were pecking each other. I worry she will not make it she is having labored breathing. Will move them into a more airy spot but am worried as they wer so healthy. Thank you again BYC. Helped me with my last group that had cocci and they also had pox. So now my new hens have and I think my old girls may not fair so well if they get it. I am keeping them away from the rest of my girls.