I had 3 RIR chicks. They were 2 weeks old yeserday. The temp here has been in the high 80's so I have been putting them out in the run for about a half hour the last 3 days. They were all doing fine. Then yesterday I brought them back inside and put them in their brooder, (the temp in there is set at around 85-90) and all 3 seemed fine. I got up about 4 this morning and checked on them and the smaller of the bunch wouldn't get up, it just layed there. I picked up to look at it and there were no marks of any kind on it where it may have been pecked at and the eyes looked good. I did look at the vent and there seemed to be what looked like a bit of white colored matter there. The chick just chirpped a few times and I put it back down. The others seemed to want to cuddle around it. They did not harrass it at all. I left for work and later called my hubby and he said the baby had died. Any ideas as to what has happened? The others seem just fine, but so did the little one before it died. I am afraid of losing them now too. The temp is around 85-90 in the brooder. Plenty of fresh water all the time. They are fed medicated chick starter feed all the time. I have given them dry squished up Quaker oats for a treat once a day. Raw not cooked. Also, they did eat some beetles in the yard a time or two. Any ideas as to why the runt died please let me know. Thanks.