Bill, this years fawn is probably going to survive without Mom. It will, more than likely, also be a doe because, had it been a male, she would have run it off to survive on it's own before now.
A lot of this stuff is kinda like managing a pond and the health of a deer herd is dependent on forage. After a couple of days it will join with other young deer. Or, she will be accepted into a group of does.
A couple of years ago I was hunting and saw 3 young(under 1 year old) deer come into the pasture. Their mothers had obviously abandoned them when it became time to breed. 2 were females and one was male. The 2 females were kicking at the young male and trying to run him off. I figured that he would, sooner or later, find some males to shoot pool and drink beer with and get away from the girls.
Usually the doe will NOT run off a male offspring until it is 18 months old and gets its first set of antlers . Most of the time yearling bucks are nubbins, meaning they have no hardened antler protruding thru the skin.
