Just an update on my hen that is/was sick. She seemed to be feeling better last night. Still wouldn't eat but drank as much as I offered. I took her to the vet today. More or less, he simply confirmed what I told him about sour crop(info I learned from you all)...thanks to all...he read info about turning the bird upside down and massaging the crop. I did this and out came about 2/3 cup of black liquid. Then I offered her food and she ate and drank. I'm giving her small portions and keeping her inside. He told me to give her Monostat for several days. Thanks to everyone for the information. Does anyone have specific tried and true advice to help aid digestion? I appreciate and welcome suggestions.