gosh look at the little cutie!
i think you should keep it and feed it.maybe he's an orphan. WHo knows?
This is a bit tricky i think. Will the bunny mom come back? WILL she take it back? wouldn't it be safer for him to stay with you and feed him?
If bunny mom comes back and she won't want it cos it smells like human, poor thing could be in danger. I think getting advice from local SPCA would be wise. If you keep it though have it checked out for diseases.