Book excerpt: Biological research in recent years has brought to light much concerning the nutrition, biology, and habitat of the whitetail. But there has always been a paucity of hard data involved in the actual hunting of whitetails. This book brings to bear more than twenty years of didactic research concerning the weather conditions that drive the daytime movement activities of the whitetail. Dr. Sheppard has prospectively joined together data from Bent Creek Lodge, one of the South's largest commercial hunting operations and data from the National Oceanic & Atmospheric Administration (NOAA) weather database to study daytime whitetail movement patterns in ways never before considered. An intense statistical analysis of these unique data uncovers some of the most profound insights known to date concerning daytime whitetail activities. More than 35,000 hunter days of data have been accumulated and blended with daily weather data to provide practical information that can, and should, change the way you think about whitetails, and definitely the way you hunt them.