Today is Monday, Wednesday night last week something, guessing a coyote or fox, got the lead hen through the chain link fence of the enclosed coop the sleep in at night and have for 6 months. Don't mean to be graphic,but it kept rolling is along the fence line trying to pull it through. This happened at dawn. When we went out and let the rest of the chickens out, as usual in their fenced in run, 7' chain link fence, for the day. We cleaned up the mess from the chicken that was killed. We left and came back about three hours later to find another hen gone. There were a few feathers in the enclosed coop they sleep in at night, which was open but no other mess at all, just gone, in broad daylight. We have kept the remaining chickens locked up since then in there coop and ran smaller chicken wire up 3' from the ground along the chain link hoping to detour any predators from getting their paws in to attack another one. The chicken that was killed in front of them all was a red star. We have a black star left that we did not think was injured but is now not eating or drinking. She was the one we got with the red star that is now gone. She was fine last Thursday, the day of the attack, we thought. Friday she would not get up, eat or drink. We found a scratch all the way down her stomach on Saturday, no blood or anything and looked to be healing well. She will eat a couple of bites of food off a spoon of crumbles mixed with water and yogurt. She occasionally drinks the water, but not normal for her. She was the loudest, besides the one that got killed, and has not uttered a peep. She is approx. 1 year old. Her crown is still as red as can be as if she is healty. Her crop is empty and her stool is yellowish white watery color. She still gets up in the hen house to roost. She hasn't laid an egg since last Thursday. And tonight we notice ants on her and poop stuck to her feathers. She keeps her tail tucked in and looks out of it. We are new at having chickens. If anyone has suggestions, please help us. I don't want her to suffer, but I don't know what to do. Her feathers are still shiny and crown is red. Could she still be in shock? Could she have internal injuries we don't see? How long can they live without eating? Waht predator do you think did this? Please help !!!