I have a barred rock hen that is 6 months old and she has been lethargic for a couple days now and her rear is quite messy. I clipped away messy feathers a few days ago also. There’s no blood in the stool or visible worms. She did eat a little this morning. I have 8 other hens that seem fine though I did notice one other barred rock has a very small amount of stool on her rear this morning, but acting fine otherwise. I added some electrolytes/probiotics to their water today. I messaged my vet yesterday and they have yet to call back. Any thoughts or suggestions? Thanks for any help.