We are definitely in summer now and it is getting hot! We lost eleven cornish today. Sadly, we had a waterer get clogged and stop flowing (bell waterers). We have since found out that you shouldn't put vitamin mixes in bell waterers. Learned that one the hard way. The vitamins allowed the water to get little deposits of slimy stuff which gets into the filter and eventually clogs the whole works. We did have a 3-gal fount waterer in there as well, but apparently some of the birds didn't manage to make it over there. We are going to have some disappointed customers .