I have had sick chooks and tried to find out from the message board what it could possibly be and I am begining to think that sick chickens all look about the same. Seems hard to tell exactly what it is cause the signs look similar. I talked to a vet at cornell a while back and he said that any sick chicken that comes into the clinic automatically gets dewormed. I hope it works out for you and your house chooks. Keep em eating and drinking, can try pro-biotics (yogurt) those never hurt (but may not help). Sorry I'm not much help.