Bring her inside. Always make sure she is warm before attempting to fee - take her rectal temp with a human thermometer - at least 101.5. You may have to microwave a dry bag of rice or beans, wrap in a towel and put it under her tummy. You want her laying upright, now flat. First get her body temp up, them feed warm milk from mom in a bottle. Just a couple of ounces at first. If she has no suck reflex you may have to syringe feed her.