Deer Facts

There are over 90 species of deer in the world, but the most common in the US are the white-tailed deer and mule deer. Learn all you need to know about these deer species including general facts and how to identify deer damage, below.

Other Photos:
Deer in the wild
Close up of chewing deer
Deer in the road
Deer in front yard

General Deer Facts

Taxonomic Family: Cervidae

Native U.S. Species: White-Tailed Deer (Odocoileus virginianus), Mule Deer (Odocoileus hemionus), Elk (Cervus canadensis), Moose (Alces alces), Reindeer (Rangifer tarandus)

Average Lifespan in the Wild: 2-4 years


Deer History

White-tailed deer have played a very important role in the history of our country. They were used extensively by Native Americans for both food and clothing and also by the early settlers.

Extensive clearing of land, unregulated hunting, and loss of habitat brought the white-tailed deer population to a record low by the late 1800’s.

Changing land uses, strict game laws, and a lack of natural large predators have caused the white-tailed deer population to rebound dramatically. White-tailed deer are the number one game animal in the United States.


Deer Hearing

A deer’s hearing, being far superior to that of a human, can easily detect the faintest of sounds. In fact, it is believed that a deer’s hearing is so sensitive that it can determine how far away a sound was made.

A deer’s hearing is one of the reasons that it is so difficult to sneak up on one without being detected. The ears of a deer are vital in helping it avoid danger.

When a deer hears a sound, it will instantly turn its head and point its ears in the direction of the sound. The deer will focus all of its attention on smelling, looking and listening for any more signs of danger. If the deer doesn’t smell, see or hear any danger after checking the area several times, it will usually go back to its normal routine.


Deer Sight

A deer’s eyes are located on the side of its head. The advantage of this is that deer are able to view 310 degrees around themselves. This wide view allows deer to be totally aware of their surroundings, even when staring straight ahead.

The disadvantage is that deer are not able to focus on one location with both eyes, causing deer to have very poor depth perception. Deer also see at a lower resolution than humans, and are believed to be colorblind.


Deer Sense of Smell

Deer have a highly developed sense of smell; it is one of their best weapons for detecting approaching danger. The moist nose of a deer - similar to that of a dog - allows the deer to pick up the faintest of odors.

The odor particles drifting by on the breeze stick to the moisture on the deer’s nose and are then drawn into the olfactory organs. A deer can detect the odor of approaching danger several hundred yards away.


Deer Geography

Deer inhabit all of the earth's continents except for two - Australia and Antarctica - with native species varying from region to region. In the United States, white-tailed deer mostly inhabit regions east of the Rocky Mountains, while mule deer are more prevalent in the west.


Deer Habitat

The ideal habitat for a deer is a transitional area - where forest meets open land. Forested land provides the cover and shelter a deer needs for protection, while open land often provides a wide variety of plant life for foraging.


Deer Diet

Deer are herbivores that browse on the fruits, leaves and stems of tall plants and occasionally graze on grass or lower-lying vegetation. They prefer tender, new growth but are known to eat whatever is available to them - their diets change with their habitat, as well as the seasons. During the spring and summer, deer feed on leafy green plants, flowers, buds, and other seasonal crops, while in the fall they begin to eat corn and nuts. In the winter, deer shift to the woodier parts of trees and shrubs.

Some favorite foods include:


Deer Behavior

Activity: Deer are active year-round, mostly during dusk and dawn hours.

Reproduction: The deer breeding season begins in fall, when males enter their "rut" period and are most fertile. Deer give birth to one to three fawns in late spring.

Communication: Deer communicate through sounds, body language and scent marking. Deer use a combination of grunts, snorts, bleats and mews to warn other deer of danger and to establish dominance. They also perform particular motions with their tails, ears, heads and hooves to communicate with each other and to ward off predators. Finally, deer communicate their location and mark territory through the secretion of chemicals through their hooves, urine and saliva.

Skills: Exceptional senses of hearing and smell are crucial to a deer’s survival, as they allow deer to seek food, sense danger and locate other deer.


Identify Deer Damage

Deer damage occurs mostly when they feed on your landscaping. They prefer the most tender parts of your plants - leaves, buds, ends etc. Deer damage can occur up to 6 feet off of ground level, which makes it quite distinguishable from that of other animals.

Some ways you can identify deer damage include:

  • pilfered flowers, crops and ornamentals - especially the youngest, most tender growth
  • torn foliage, buds or twig ends with ragged edges (straight edges indicate a rabbit or a groundhog)
  • stripped bark with 2-inch gouges created by their lower incisors or vertical scrapes from antler-rubbing
  • deer tracks: two almond-shaped toes per hoof
  • deer droppings: typically piles of smooth, dark pellets that resemble black beans

Fun Facts

Deer antlers (which only male bucks possess) are extensions of their skulls. Bucks will use their antlers to fight each other for a doe when in rut. Antlers are then shed after the mating season and re-grow in the spring.

Some hypothesize that a deer’s sense of smell is 100-times that of humans, and their hearing is so sensitive that it can determine the exact distance at which the sound was made.

Scientists believe that deer can see in the ultraviolet light range, which is abundant during the early morning and late afternoon. This ability to see better in twilight helps explain why deer are more active during these time periods.

While a whitetail’s life expectancy in the wild is only about 2-4 years, they can live up to 15-20 in captivity.

A group of deer is called a herd.

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