The white-tailed deer is well-known for the habit of flipping its tail up over its back, revealing the tail’s white underside and white buttocks. In summer, the white-tailed deer has a reddish pelage, or fur, on its back and sides and is whitish beneath. In winter the upper parts turn greyish. Full grown male deer frequently exceed 1 m at shoulder height and 110 kg in weight, with exceptional individuals weighing up to 200 kg in the northern part of their range.
Abundant food makes almost any forested or bushy area suitable for white-tailed deer during the summer, but as snow deepens the deer concentrate in "deer yards," or areas that provide food and shelter from storms and deep snow.
Deer reproduce quickly. A healthy herd is capable of almost doubling its numbers during one favourable year. The doe leaves its fawn unattended for hours at a time. People sometimes mistakenly believe they have been deserted by their mothers. In fact, a doe will rarely desert her fawn, and the little animals should not be touched. Human scent on the fawn may cause the doe to desert it.