Mostly skill. Most people that appear to be the "lucky hunter" are probably more skilled than they appear but just don't know what they're doing right [8D].

Like this person that shot a deer walking to his stand. At face value appears pure luck.However he picked the stand to go to in the first place for whatever reason. I'm sure he hashed something out in his brain about where to sit. He picked the way to walk to his stand. Again whether he knew it or not maybe picked the way to walk in that allowed him to get a shot. Maybe if he picked a different way in with the wind blowing to them, he would have been busted before being able to shoot. He walked quietly enough to get within range, etc.... So I would say............. HE'S SIMPLY A LUCKY DOG!![:-]