I have someone, or someones, in my flock putting out the worst looking bloody poos. They're about normal consistency, with a firmer middle, and then liquid around but it looks like almost straight blood. Flock consists of 10, 16 week-old RIR (vaccinated), and 27 9 week-old NH Red and Cornish X(non-vaccinated). I've watched them and have seen quite a few of the older RIR poop with no blood and a few of the young NHR so I'm thinking some of the Cornish. Anyways, I've looked around on the site and I guess it's probably Cocci so I'm picking up Sulmet today. Their litter is dry and well-ventilated but I guess 37 in a 10x16 coop is kind of pushing it. They range all day. I get that worms may also be to blame but they get DE in their feed and I don't see any trace of worms in the poo. Other than the bloody stool they're active and lively as ever! My question is would you guys recommend buying Sulmet and Iveromec(sp?) or some kind of wormer and just administering both? Or starting with just Sulmet? I called my local vet and they "don't do chicken stool samples" - totally unexpected as I live in the country. So I'm kind of attacking a problem based on one symptom with no other info. Thanks for any help.