So, Ramona is, as far as I can tell a Production Red hen. Got her about 2 years ago when she was already about 2 1/2 years old. She has been progressively having a harder time over the last few weeks with being able to use her leg strength which we had attributed to her getting older, as she takes more afternoon naps and rests than the other chickens. Anyways, I found her a couple days ago, unable to stand up. I removed her from the yard and am keeping her in a milkcrate with some straw in the living room currently. She cannot stand up, won't eat or drink water, and she has a hard time keeping her head up. It looks as though, despite her intentions, her head will fall down, as though she has lost control of her neck muscles or something. None of the other chickens are sick in any way. Haven't done anything to treat her because I don't know what the problem is. If anyone has any ideas please let me know.