Hello, this is our second run of Cornish cross birds. First group we raised in the spring and they did great. Our second group, we have kept and fed exactly the same but have noticed a couple of them are laying down, wings out and ruffled, won't eat or drink. I have tried to get them to stand but they keep their legs tucked under. They both seem to be just getting weaker and weaker despite trying to make them drink. Stools look normal, no cough or drainage...rest of flock appear normal. Should we cull them, should we butcher them, should we eat them? Any comments are appreciated, thanks.