My 5 hens were free rangers (with grain supplements) for 2.5 years. Then they ended up having to be penned. They have been in a 16'X16' pen with a coop. There is grass in there through late fall but it is gone by then. They will be 5 years in July and only one hen lays regularly. The others never started back up laying in the spring of 2013....4 or the 5 have never laid an egg since (no , this was 1-2 here and there once in a while) Their health has been very good (they are pets). Jan 2015 they have been penned with food provided by me no free range. They still eat layer crumbles and a bit of scratch and black oil sunflower seed. I supplement with dried mealworms, and fresh greens either from the grocer or if possible what I harvest. Unfortunately, they have lost some weight and I lost one hen 5 days ago. She was very heavy compared to the others and I suspect a tumor. Now I have a second hen (both are buff orps) who seems to be going downhill. She actually stands and walks like a penguin. Her legs seem to not hold her weight. She is not excessively heavy like the other. She is drinking a LOT and I do mean a LOT of water. One day she'll seem more alert and moving around more and pecking and talking, then the next day weak and not eating. Everyday I think I'll find her dead in the coop but there she is. She has not enough strength to get in the coop in the eve so I put her in and make her comfy. No poo...all watery non smelly stuff. She also last week had a few days of spitting up yellow watery fluid. I fear she is on her way out........ My question is could this hen or even both hens, perhaps be having issues from nutrition? Or did they pick up a fungus or bacteria from their pen? Right now there is a bale of straw that was spread around the ground to keep them from standing in cold muddy spots and that straw is of course wet from winter. Did they maybe scratch and eat something nasty? Any ideas?