I would look around your area ASAP and try to find a wildlife rehaber to take the rabbit too. Baby rabbits are very fragile and it really sounds like the little guy needs medical care. Plus, if he was still nursing, baby rabbits need special milk, you can't just give it cow milk because their digestive systems can't handle it.
"The wise man is one who never sets himself apart from other living things, whether they have speech or not...learn what can be learned, in silence, from the eyes of animals, the flight of birds, the great slow gestures of trees." Ursula K. Le Guin
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