Large western deer with distinctive enormous mule-like ears and a rope-like black-tipped tail. Famous for "stotting" — bounding with all four feet hitting the ground together, an unusual escape gait.

§ Quick facts

SizeShoulder height 80–100 cm
WeightMales 70–150 kg; females 50–100 kg
LifespanWild 7–10 years
OrderArtiodactyla
FamilyCervidae

§ Encyclopedia

The mule deer is a deer indigenous to western North America; it is named for its ears, which are large like those of the mule. Two subspecies of mule deer are grouped into the black-tailed deer.

Source: Wikipedia — Mule deer Licensed under CC BY-SA 4.0

§ Identification

Field marks. Medium-large deer with grayish coat; large mule-like ears; black-tipped white tail.

Similar species. White-tailed Deer (different tail). Black-tailed Deer (subspecies).

Voice. Snorts; bleats.

§ Diet & behavior

Diet. Browse: shrubs, twigs, forbs.

Behavior. Western deer. Famous "stotting" escape gait — bouncing on all four legs simultaneously. Migrates seasonally between summer mountain ranges and winter lowlands.

§ Range

Western North America from Alaska to Mexico

§ Habitat

Diverse: mountain forests, deserts, sage-steppe, prairie

§ Threats

Habitat fragmentation by roads and energy development, chronic wasting disease, climate-driven range shifts.

§ Conservation status

According to the IUCN Red List, the mule deer is currently classified as Least Concern.

§ What helps

Support wildlife corridors and highway crossings. Don't artificially feed deer (disease spread). Slow down on rural highways.

Support our work More ways to help

§ Further reading

§ Sources cited

  • American Society of Mammalogists
  • Mule Deer Foundation
  • IUCN Red List 2016