Hi! I read all over google and on here that sourdough starter was ok to feed my girls. I started about 3 weeks ago and fed them about 1/2cup (I have 12 Hen and a Roo) maybe 2-3 times a week every other day or two days. I was baking a lot! Sunday I found my biggest Buff Orpington just laying in the run, she was so lethargic and weak. I checked her rear and it was awful! A White pasty mess. She seemed in pain as well. I cleaned her up and offered water with apple cider vinegar, her regular crumble food and she didnt take any of it. I started giving her a little water in a dropper on her Beak and she swallowed some of that and maybe two bites (pecks) of oatmeal and plain yogurt. I Applied an anti fungal cream to the while back side area ( by this time I was going on google searches that it was vent gleet.) I felt pretty confident that she would improve and kept her cozy in the mud room overnight. But I checked on her in the night and she'd passed. I feel so guilty!!! Did I make her sick? I checked all my girls and One other hen had some white on her rear feathers but nothing like my Henrietta and that one has since shown no sickness and seems fine. Of course I haven't fed them any more starter. Was it too much? Did I do this to my sweet Henrietta??