I'm very sorry for your losses. I hate that your feeling guilty. I doubt that anyone could have done better. I hope treating for cocidosis will do the trick. Good luck!Just to give you the progression, after incubator they go to brooder with heat plate and lamp for first couple weeks. Then to shed brooder with heat lamps for about two weeks and then to outdoor enclosure for about two weeks before I moved them to the bigger coop/run. After the first night I had deaths. I spent a couple hours inside the run today watching them and they appeared fine, though a couple were moving slow. I added a heat lamp and they seem to like that. It’s been in the 50s and wet here (75% of the run is covered) and will be in upper 40s tonight. I was thinking that maybe they were huddling and got crushed but have no direct evidence. Plus had another perish this evening in the middle of the run. As mentioned above, I did see a runny stool. Feeling guilty about my chicken keeping ability!