I have had three of my sons chickens die at this point. We feed them crushed insoluable granite, corn scratch feed, and pellets. The first two that died were his Americaunas, his favorites. They had feathers missing from their rears where one of the other chickens were pecking at them. The last one that died was one of the black and white chickens, not sure what kind that is right off hand. She was not missing any feathers. When she died I noticed the where the eggs come out was wide open and bloody. Poop seems to be fine, its like it always is. We got them as chicks in spring, around May I think, and they have been laying fine so far. I noticed an egg that had blood smeared on it when the last chicken died as well. Nothing has changed and there is no way they could have gotten into something that could have poisoned them. Any ideas what is causing this? I looked at the chickens good tonight, the five that are left, and all seem normal except for a white chicken. She's missing a few feathers and has a naked rear end, you can see this when you hold her upside down. I have pics on my cell that I could send to a cell phone if someone wants to see I just have no way to put them on the computer. Please let me know if you have any ideas or suggestions!!! My son is Autistic and devestated that his chickens are dying so young.