I am totally new to chickens. Any help or experiences you can share would be greatly appreciated. I have a Rhode Island Red that is about a year and a half and I noticed today when I went down to change their water that she had a lot of poop on her back feathers. Upon futher inspection there is something sticking out of her vent. It is smaller than a golf ball in size and is very hard. In the pictures I was looking at online and all the pictures of a prolapse looks like soft tissue. Any thoughts? I also am treating the rest of the flock (3 Rhode Island red, 3 black sex link) for cocci. I had one black sex link pass away about 5 weeks ago and she had mucus coming out of her mouth when I found her. I cleaned everything and continued to watch. I thought I was out of the woods until last week when one day one of the Rhode Island reds started to act funny. I separated her and she passed hours later. I noticed when I picked her up to separate her the same mucus stuff came out of her mouth. When she passed she had the mucus stuff coming out of her mouth. I noticed some diarrhea in the other chicks and other symptoms of cocci so I am on day 3 of treatment. Does anyone have any experience with this and is it something other than cocci?