I just went outside and one of my RIR hens that I haven't seen in weeks was there. I thought a hawk had got her or something. I found one hen dead in the coop about 3 weeks ago and the other one just dissapeared about a week before that. I didn't see any babies, and her comb looked a little pale. She doesn't look skinny though. I don't know where she could've been. Strange. Any thoughts?