Help! I have 3 hens and 4 8-10 week old chicks. The chicks are in the coop with the chickens but seperated so the chickens can not get them. Last week, 1 of my chicks died. The chicks had food, water, normal poop, no watery eyes, or sneezing. The other chicks had pecked the chick that died several weeks before, but that was all healed up. There were no other wounds or injury that we could see. Everybody else was fine and active. This morning I went out and 3 more chicks were dead. They had food and water, good temperature and no wounds. The last living chick seems very healthy;. She's not running around crazy like but she is walking around the yard and checking stuff out. Her poop is watery white. She is drinking water and eating. No bloody stool, no head bobbing, no wheezing. My hens all seem totally fine; great poop running around eating, foraging, etc. I went ahead and gave them sulmet. Any idea of what is taking out my flock? Until this, I have never had any issues. Any help is greatly appreciated!!