Found a bloody poop on my porch a couple of days ago. futher investigation showed an area about 4 inches around (irregular edges) under the perch with blood on the shavings. Coop houses 8 15 week olds and 8 younger girls. none of the chickens are acting poorly. Found a couple of more suspicious poops on the deck since then. Girls free range, raised on medicated starter, recently switched to grower pellets. They all love snacks. I may have done a bad thing and given them some leftover deli ham a week ago (they loved it but I realize it's not the healthiest snack!) So, I went to the feed store and got sulmet and started the flock on it. Does this sound like possible cocci? Could it have been the deli ham? Have I done the right thing for starters? All chickens acting healthy, what should my next step be? Thanks in advance!!!!!