National Bowhunter Education Foundation
The NBEF states that "a wise bowhunter gives the animal time to expire," and that the normal waiting period after arrowing a big-game animal ranges from 30 to 60 minutes. A caveat to this is quick pursuit in the event of a poor hit outside the chest or body cavity (neck, leg, rump, or back). In such instances, the deer might run away quickly but then calm down, stop bleeding, and possibly survive. "If you can follow the animal rapidly and aggressively, it will continue to bleed, even from a relatively minor wound…It may lose enough blood to get careless and give you another shot. It may even die from a wound that would not normally be considered fatal."