It takes energy to stay warm. A whitetail's coat with its hollow hair is a great insulator, allowing deer to bed comfortably in snow; it also effectively repels harsh winter weather. But it doesn't stop there; whitetails are also adept at finding sheltered areas to winter in. Dense conifer stands are a favorite as they block the wind and absorb heat from the sun. Studies have shown temperatures to be higher in dense conifer stands than neighboring hardwoods. South-facing slopes with direct winter sun, less snow, north-wind avoidance, and early green up, are also favorite spots for whitetails to conserve energy in.