Wednesday I started out with 14 SLW's about 2-4 days old. Yesterday one died and I couldn't figure out why. This morning the rest looked fine, but I noticed they were all acting as though they were going to sleep while standing, some to the point of almost falling over. A little later I noticed one had separated itself from the group and I checked it over. I found dried feces all around the vent so I cleaned it up and checked the others. Found a few more like it so everyone got cleaned up. A couple of hours later I had another dying. I've been watching carefully and there is no bloody stool. Their brooder had some new shavings in it but I have now removed the chicks to a different brooder just in case the shaving were causing the symptoms. They are on a non-medicated chick starter and have plenty of fresh water. The brooder temp is at 85. I'd would appreciate any ideas.