My sex link hen keeps getting blackish and white poop stuck on her bottom. Her vent is bright red and seems swollen (not sure). I give her a Epson salt bath and gently rub her bottom and lubricate her vent. She doesn't want to be around the other hens, which I understand to be her bottom/oviduct is red and shiny and tempting to peck. I'll do the bath until she seems better and isolate her or she will hide in a nest. These are free range so they roost in the trees. Usually when she is going through this she will not join them then I know she's not feeling good I put her in the barn, then she will be fine. There doesn't seem to be a egg stuck, I don't feel anything. Could it be a collapsed vent? Is it just the breed? She doesn't lay afterwords for a week or more. I don't have any idea what this problem is or why it is happening. We do not have any vets who treat chickens around here.