I have several baby chics that are only 2-3 weeks old. 3 have gotten pasty butt and one of them died. My question is, I seem to have read that pasty butt is a result of not getting enough water. I have a waterer in there and keep it full and clean. I see some of them drinking out of it occasionally. Will the chics drink as water is needed by their bodies? How do I know if they are getting enough water? I guess ultimately what I'm trying to figure out is, if there is water in there, will they drink it? Also is there a possible other reason for the pasty butt? Thanks.