I've got a little button quail chick--Half&Half-- who has been dealing with some pasty butt for the last three days. He is our long-legged runt, but has been doing great until the pasty butt. I have been diligent about cleaning it off with warm water and a Q tip at least once or twice a day, but he is so tiny and wiggly that I am constantly worried I'm going to hurt him. The poop dries to his little butt feathers, which seems to really tug and hurt with even the most gentle swabbing. I think I first noticed it the day I added ACV to their water, which was surprising to me, as I had added this as a way to *prevent* pasty butt (and because I had read that it was generally good for poultry). Is it possible that 1tbs/gallon is too much for some individual birds? Could that possibly be the culprit? I'm not quite sure what to try--most of the advice I can find is for baby chickens, and some of them I know won't work (like adding chick grit--still too tiny), and others I can only find suggested one place, with no confirmation anywhere else (I don't want to try 10 different things at once). Has anyone had luck with rubbing a little olive oil on the vent and/or giving them some plain yogurt? I also read that molasses mixed into the water can help clear it up--any experience with this? OR--Does anyone have any other suggestions or ideas as to why he might have suddenly started having this issue? I really wanna get the little guy back to healthy poops ASAP! Thank you, BYC!