Hi, I have quite a dilemna regarding diarrhea in my 6-7 week old chicks. What are the causes of Diarrhea in chicks that are very young? I have been feeding medicated chick starter for their first 6 weeks and have also given them some worms from the yard. They've also gotten low-fat yogurt and grapes. The problem is some of them have had diarrhea on and off for the past two-three weeks. I thought it was the grapes and the yogurt and have not given it to them for at least a week and a half. But the diarrhea has continued. Mind you, it's not bad, just sometimes. I thought it was just stress that was doing it. I've been letting them out almost every evening or during the day for a jaunt pecking in the grass in our yard and always supervise them lest a hawk or neighborhood cat get them. As far I know, our yard is pesticide free. Any ideas as to that is causing their illness? Does it have to do with stress or the food I was feeding? Any thoughts?