I'm new to chicken raising. I have 3 hen and 1 roo easter eggers (was told ameraucana but I didn't know the difference) Had a few months now. Everything has been normal, eating, running around etc. Yesterday and the day before, she seemed sleeping, not moving around. Today she won't stand and I don't think she has been eating. I isolated her with some food and water in a warmer place. When I pick her up, she opens her eyes for a second, I took some picture of her in the coop this morning before I moved her. Not sure what to look for or what meds she may need. All other hens and roo are fine.
This picture is when we got them a little over a month ago:
Thanks for any help!