Deer hunting is hunting for deer for meat and sport, an activity which dates back tens of thousands of years. Venison, the name for deer meat, is a nutritious and natural food source of animal protein that can be obtained through deer hunting. There are many different types of deer around the world that are hunted for their meat. For sport, often hunters try to kill deer with the largest and most antlers to score them using inches. There are two different categories of antlers. They are typical and nontypical. They measure tine length, beam length, and beam mass by each tine. They will add all these measurements up to get a score. This score is the score without deductions. Deductions occur when the opposite tine is not the same length as it is opposite. That score is the deducted score.
Hunting deer is a regulated activity in many territories. In the United States, a state government agency such as a Department of Fish and Wildlife (DFW) or Department of Natural Resources (DNR) oversees the regulations. In the United Kingdom, it is illegal to use bows or rifles chambered in bores smaller than .243 caliber (6mm) for hunting.
Source: Wikipedia
2. Despite its name, stag hunting is not confined to the male of the species. Hinds are hunted too, sometimes when they are pregnant or with a calf at heel. Stag or hind, the end is the same. A free wild animal is hunted to death.
3. In areas where deer need culling it is more efficient and more humane for them to be shot by a marksman.