In the study, 60 radio-collared deer being monitored to measure the effects of hunting pressure proved very sensitive to the sight, sound, and scent of multiple hunters in the woods. The deer would respond by moving to progressively thicker cover. To anyone with even a little experience hunting deer, this isn't groundbreaking news, to be sure. But what the study revealed was that the radio-collared deer didn't bolt for the next county, as many hunters believe pressured deer do. Instead, they merely slipped into the nearest thick cover within their home range.