I am a very beginner chicken owner. I have two year old red star chickens, down from four a couple of months ago. Two were killed by hawks so we covered their (big) run and that saved the other two. While both had been laying eggs nicely, after the attack, one started laying sporadically and then stopped laying. She seemed healthy, running around, eating and vocalizing well. Just didn't lay any eggs. I couldn't feel any lumps anywhere, she was pooping well so I just thought it was trauma and would resolve. Over this last few days, escalating yesterday she was moving slowly, tail down, acting as if she was having trouble staying awake. She feels like skin and bones. She looks fluffed up but there is no puffiness, it is all feathers. She was drinking water and then just standing there. I gave her yogurt which she enjoyed. This am it is clear she didn't roost, but lay under the roost. She won't move and her eyes are closed most of the time.. Her poop was watery but dark and white colors visible with two little rocks in it <??>. I feel so sorry for her but have no ideas. I went through a lot of the threads and nothing jumps out at me for why she is sick Any suggestions? Thank you so much.