some time the deer may run off a little if your real close to a road and if an atv or trail bike is coming. if the bike keeps going the deer dont run far.. now if your using your atv and dricing it almost to your stand in the morning your blowing out you deer and they wont come back until dark30. for the most part if you riding an atv or trail bike during daylight that doesnt reall bother the deer. bucks coming to yur bait in the pine at night is the way it is. them deer are the smartes going because lots of them live longer than most.