I just bought 6 RIR from TSC and when I got home 2 had poop dried to their tails. 1 had a massive amount and the other was not so bad. So I washed them off under a faucet, except the water was cold well water. Not thinking about the possibility of hypothermia. I put them in the coop with the other hens and a few minutes later I noticed they appeared listless and lethargic. I immediately pulled them from the flock and have them in the house under a heat lamp. They seem to be recovering however the one that had the massive of poop on it's tail I'm afraid may not make it. Did I do the right thing by washing them off? If not how should I have handled it in case I run into the same thing in the future? I am a noob when it comes to all things chicks and chickens. Any help and advise would be greatly appreciated.