My husband and I noticed that one of our chickens was acting lethargic so we gave her a mini examination only to find the above growth by her vent. She seems to be able to still poop, and walk around normally, but we are not sure what to do now. We gave her a warm water bath and let her butt soak for about 10 minutes to clean her up a bit. It also looks like she has pecked out the feathers around her vent area. Has anyone seen this before?