We're losing a chicken about every other day. The only thing they have in common is that one day they are happy and eating and seem healthy and the next day they are dead. We have two separate areas where we're keeping chickens. In the garage, we have two welsummers, nine broilers and a chicken being cage trained for the 4H fair. Then we have a hen house where every one else lives. They free range during the day, but get as much feed as they want each morning and evening. The two groups are not on the same feed and have no contact with each other. We've lost three out of the garage (well, 4 if you count the broiler we recieved a week after we got them, but that is too common to raise much concern.) We've lost four out of the other group, though one may have been predation. We weren't able to find a body. It just never showed up at feeding time. We watched one die. It went from being fine, to laying down, to spreading its wings and panting, then pulled its legs up and died, all within about an hour. What kills that fast? And with no other symptoms? We've lost a hen (our best layer), a cockerel, two chicks (about 6 weeks old) and three pullets. There are no signs of lice or mites, but we've cleaned out the coop and the garage, disinfected everything and treated them with miticide from Orscheln's according to the package directions (this was after several deaths. We had suspicions of mites because we got bit a few times in the hen house...never bad, and we never found them on the chickens, but I'm really feelig like we have to try something. Thinking about picking up something for internal parasites, but without symptoms, is that wise? Their poo is normal. They seem to about the correct weight.