White-tailed deer are found in all habitats of the contiguous United States and Southern Canada. As people have encroached upon their habitat, White-tails have adapted to eating other types of vegetation, including ornamental plantings, and putting them at odds with people. Like many other ungulates, deer are ruminants, having complicated digestive systems. This system is broken down into separate chambers, which contain microorganisms, which break down the vegetable matter they eat. They enjoy eating young plants, shoots and buds, a variety of leaves, shrubs, bark, berries and fruits.
Winter induces a lack of appetite in conjunction with the amount of available food.
White-tailed deer live in small groups or alone. While taking care of their young, does will remain solitary. She will usually place her fawn in one area, moving away to hunt for browse in another. When the fawns are old enough, does will group with other does and fawns. During the rut season, bucks are generally solitary, but will join with other bucks around mid-winter, forming bachelor groups.