A month or so ago, we noticed that our Silver Wyandotte pullet stopped laying. A couple days ago, we brought her into our house because she was laying down in the chicken run and extremely lethargic. When we brought her in, she immediately took an interest in the food and water we provided her and she perked up. She had quite a bit of poop on her bottom, so we wiped it away. Instantly, she pooped out a yellowish liquid. All of her poop since has been green. My partner did some research and believes it may be egg peritonitis. By Tuesday morning she seemed to be doing much better. She was interested in her food and the scratch I threw down for her. She was minimally vocal and not nearly as weak as she was when we brought her inside. By Tuesday pm, though, she had grown extremely weak. She was laying on the floor with very minimal movement. This morning, she looks like she is about to expire. I just gave her another look over. Her bottom is cover with greenish poo and I noticed (for the first time) an orangish-colored swelling near her vent, about the size of a quarter. Its not rock-hard, but it does hold its shape when lightly squeezed. Any ideas? I don't know if this is peritonitis or not. This is a sad case for us. Faith, as we call her, was our first egg layer, and the first of 2 chicks we brought home to start our backyard coop. Sad update: I just checked on her and she has passed away. Poor girl...I wish I knew what this was. This is the third hen (out of 7) that we've lost this year.