Emergency Care
PLEASE DO NOT FEED ANYTHING!! Bunnies aspirate easily and feeding them can cause aspiration pneumonia, GI distress, or death.
Get a plastic box, line it with fleece, put a heating pad under half of the plastic box on low, and put the bunny in a quiet dark area away from animals.
Wait for the wildlife rehabber to respond! If you are able to transport the bunny, remember that rehabbers are unpaid volunteers and they appreciate this very much!