We have a 1 1/2 year old Rhode Island Red, was a good layer, occasional free ranger. About 10 days ago, I noticed she was sticking by herself & laying on the coop floor a lot , even though she's higher on the pecking order. She had a little poo in her feathers, below her vent & when I looked I noticed it looked like she was constantly contracting. I thought she was egg bound, even though I couldn't feel one, I gave her a bath & some tums. She took a seemingly normal large poo & her condition didn't improve. I spent 7 HOURS at the emergency room vet/college, ISU. They X-ray ed & said she wasn't egg bound, said it was probably parasites, gave us a sulfa med, flushed her & gave her fluids.....$300. Oy She hasn't improved. She is the only hen acting like this. She looks normal, she just sits alone a lot, eating/ drinking very little & her vent looks like its moving all the time. ANY IDEAS PLEASE? Thanks for your time!