Hi there- Yesterday I noticed one of my hens had a streak of stool down her backside. Today it looked worse and I took a closer look. I lifted her tail feathers and noticed what appears to be a collection of stool all over her butt feathers. Some of the stool that was stuck to it was formed. She is behaving fine, eating fine...very active. Just has a messy butt. It just seems unusual and I am not sure what is going on. Any ideas?