Some good suggestions so far. I second the oatmeal. Use quaker oats if you have some. I would try some raw spinach. The timothy hay should be fine for it. They also seem to like applesauce. Like everyone said, its difficult to rescue a tame baby much less a wild one. Don't beat yourself up if it doesn't survive. Put out some rabbit pellets if you have them. My babies would begin nibbling as soon as they could get out of the box. They did that pretty early. Good luck!