Wow. Tough crowd. Well, first I am not sure what my 13 week old blue marans hen had since as I said it was New Year's Eve and then New Year's Day. I feel sure that labs and chicken vets were shuttered for business. So, I didn't test her for coccidiosis, but deduced that from my reading. And yes, I could be absolutely wrong and she had some other blood pooping disease. I am only stating what happened to me, which is that my hen was completely listless, not eating, not drinking, wilted like a flower and pooping blood with no fecal matter in the blood. She also had clearly lost a lot of weight. Being a holiday and no standard options and with nothing to lose, I did extensive internet digging. I found that GSE deworms and kills parasites. That farmers have been using it for some time on goats and bunnies for cocci. That other people have used it on hens with positive results. And so, I took an educated gamble and tried it on my hen. Slowly, her poop went from blood to mixed with blood to normal. And she began to eat and drink on her own. It's possible that it was the sacred Buddha that came down from the clouds and healed my chicken in my sleep. It's possible that the light of God himself worked through my healing hands and I have a talent that should go on the road and garner many shekels. It's possible that she only needed some additional water to heal her bloody poo. And yet... I suspect it was the GSE, since I had already tried epsom salt water and olive oil the day before with no luck. I will also say that the other babies in my Littles Coop presented with the same bloody poop just as the other hen was beginning to eat. I quickly put drops of the GSE in their water and watched the straw for blood and it disappeared. Again, I might just be supremely blessed with electrically magical hands or the spirit moving through me. I haven't been tested. Or it may have been a total fluke, never to work again even under the most stringent lab conditions. I personally, though, would certainly take that gamble if one of my hens had the same symptoms in the future.