I have an acquaintance who rescued a fawn. The mother had been hit by a vehicle. I doubt this fawn is more than a week old. My father rescued a similar fawn many years ago, and we just fed it cow milk. Is there something better?
You’re probably better off making a meal of it. Hand-raising the fawn is going to cause it to be completely desensitized to humans, therefore living out the rest of its life being a pest and causing no end of trouble both for itself and for those humans it annoys.
IANAV, but if it worked before, well, maybe.
Is there an all night vet you can call?
I remember rescuing kittens and feeding them “kitten” formula from the local feed store …