Hello there, I am new to this forum and new to having urban chickens. I have 6 hens that I have had for a few months. All of them came from the same place. I noticed that over the past couple of days one has diarrhea but I couldn't tell which one. This morning when let them out of their coop to roam in the yard I noticed one had poo matted all in her feathers. She doesn't act sick. She's eating and drinking and acting "normal". At the moment I have no way of separating her from the flock but I am going to get some kind of enclosure today to separate her. I am not sure what I should do for her (and the others if they are exposed to something). The ladies are about 1 year old. I usually do a quick clean of their coop once per week. My dog shares the yard with the hens but I pick up the dog poo every day before I let the chickens out. The dog is good about not attacking the chickens but she does on occassion chase one. Could this be stress from my dog? I looked over the other ladies and so far their hind ends' are okay. Any advice would be greatly appreciated. Thanks.