Hi This morning our six chickens didn't come out of the coop right away, and didn't eat much when they did come out. They seemed to be avoiding one of the buffs. A couple of hours later the one buff was laying in the corner panting and died within the hour. The remaining five seem ok but are not eating. Yesterday, they all seemed fine. I'm thinking maybe it ate something in the yard but I'm worried it's a disease that will spread to the rest. The kids are at school but will be devastated when they get home. Any ideas or suggestions?