I've been struggling trying to nurse a chick back from being injured during shipping to the feed store (yup, one of those "free" chicks). Her crop has been hard and for a while I thought she was turning around. However, I found out that she isn't drinking water nor is she growing even with the extra vitamins and electrolytes. Recently, she is refusing to drink even being watered and fed through an eye drop. Add to it, the poor thing sleeps almost constantly. Would you keep trying after 4 days or cull her? If I cull, it is going to have to be the baking soda/vinegar method. It would hurt me more to break her neck. Plus, I don't know what I'd be doing and would probably screw it up.