Taking of fawns is kind of a touchy subject, but in reality there is a good case to be made in favor of it. In any wildlife population, the young of the year will have natural death rates that are many times higher than adults. Here in Montana, with deer or elk, it is usually the case that 6 or 7 out of every 10 fawns or calves die before they reach their first birthday. So a fawn that is harvested by a hunter would probably have died anyway, so in a sense that kill is "free".

Personally, I won't kill a fawn because the amount of meat is so small, but there is nothing intrinsically wrong with it.