Lethargic hen, standing still with eyes closed

[rosalia]

One of my chickens has been acting a bit strangely recently and I can't figure out what's wrong- she's about two years old, and she stopped laying eggs about a month ago. However, apart from that, she seemed to be completely fine. More recently, maybe for about the past week, she's been rather lethargic and sometimes just stands still with her eyes closed. She also seems to have lost her appetite a bit, but is still eating some food. Apart from that, she doesn't appear to have any other physical symptoms that we can see/feel, and our other two chickens are absolutely fine too- it's just this one who seems unwell. I was wondering if anyone has any ideas what might be wrong with her, and what we can do to help? Thanks!

 

[Eggcessive]

The things I would look for would be a crop problem (impacted or sour crop) and possibly her being an internal layer or having egg yolk peritonitis. It might be good to confine her in a dog crate with food and water inside the coop or run to monitor her intake and watch her droppings. Pick her up and feel her crop, feel for weight loss in her breastbone, and look for fullness in her lower belly. Check her vent are for lice or mites. Her crop should be empty in early morning before she has eaten, or there may be a problem. Try feeding her a little chopped egg, and her usual feed. Here is some reading about EYP and internal laying:
http://www.theveterinaryexpert.com/backyard-poultry/egg-yolk-peritonitis/
http://scoopfromthecoop.nutrenaworld.com/tag/laying-issues/