I have a barneveldar hen about 3 years old and stopped eating all of a sudden and causing her to lose condition. Also losing feathers around the tail area from bullying by the other hens. I have been to the vets and have had a course of antibiotics injected into the breast every other day for a week - but no improvements. The vet also checked for mites/lice with the feather loss but that was ok. poops have been a bit runny of dark green and white and her comb is looking very healthy. I have brought her into the house for some tlc and having to feed her by hand with hard boiled egg and chopped greens dipped in grit. I am also having to syringe baby food into her to try ang get some food into her and i am having to syringe water to her to ensure she has fluids. because of her not eating she is now losing weight and I don't want to lose her.