Hello I've posted a few times about my sick duck Ethel (see link below for more information) https://www.backyardchickens.com/t/...ck-and-weak-looking-for-some-answers-opinions She is looking much better, eating and acting more like herself. But her droppings it seems haven't entirely cleared up, they are still runny though not quite diarrhea. Today I noticed mucus in them. The picture below is from Ethel and the other from my other duck Fred. What could be causing this? Could it be coccidiosis? I haven't seen any blood and she is back to herself for the most part. Also what helps clear up diarrhea in general? I have been adding apple cider vinegar to their water daily. Thank you.