this hen is about 3 or 4 years old. We bought the property in Aug. 09 so not sure her exact age. she is not eating/drinking on her own at all. Very prominent breast bone. I have been force feeding her a mixture of scrambled egg, oatmeal, yogurt, a little applesauce, and some honey for energy. Have been mixing her crumbles in it also. Have tried powdered antibiotics, electrolytes/vitamins, and small amount of cod liver oil. Heat lamp in the eve. If it wasn't for the force feeding, i think she would already be gone. She doesn't act like in pain, just stays laying in her box, and if you force her to move, she only uses one leg and falls over flapping. No exposure to baby chicks or pullets. talked to state of calif. ag and they will do a free necropsy if i fed ex with ice to Davis. Hate to cull her if it is something else, but not looking good.