I am new on here and need some help. We got my son some chickens last spring and things were going great. However a couple weeks ago one died, then this past week another one died and now less than a week later yet another one died. This time I noticed something different, I went to pull the chicken out of the coop and noticed blood from the chickens back side. It appears that the chicken laid an egg and had had started bleeding from it. I am not sure if this is what caused the chicken to die but it is the only thing I can find. We are feeding the chickens pellets, Crushed Corn grain, and Crushed Granite (I think its granite and I can check when I get home. I am really concerned about what is going on and what I can do to stop it from happening again. I haven't had chickens since I was my sons age and I don't remember much about it then, my parents and grandparents took care of the chickens back then. We are down to five chickens out of eight, both the Americanas are gone and they were my sons Favorite and before I get more to replace them I just want to make sure I can handle this issue if it happens again.