By mid-April, deer will be recovering from the winter and starting to move onto their summer ranges.
Date 30 December 2010, 10:43
Source mule_deer_elk_creek_b_myatt
Author Oregon Department of Fish & Wildlife
Source: https://commons.wikimedia.org/wiki/File:Mule_deer_elk_creek_b_myatt_(5489215221).jpg

The mule deer (Odocoileus hemionus) is a deer indigenous to western North America; it is named for its ears, which are large like those of the mule.
Order: Artiodactyla
Family: Cervidae
Subfamily: Capreolinae
Genus: Odocoileus
Species: Odocoileus hemionus (Rafinesque, 1817)[2]

[Subspecies]
Mule deer group:
- Odocoileus hemionus californicus – California mule deer
- Odocoileus hemionus cerrosensis – Cedros/Cerros Island mule deer (Cedros Island)
- Odocoileus hemionus eremicus – desert/burro mule deer (Lower Colorado River Valley; northwest Mexico, southeastern California, and Arizona)
- Odocoileus hemionus fuliginatus – southern mule deer (southernmost California and Baja California)
- Odocoileus hemionus hemionus – Rocky Mountain mule deer (western and central North America)
- Odocoileus hemionus inyoensis – Inyo mule deer (Sierra Nevada, California)
- Odocoileus hemionus peninsulae – Peninsula mule deer (Baja California Sur)
- Odocoileus hemionus sheldoni – Tiburon Island mule deer (Tiburon Island)
Black-tailed deer group:
- Odocoileus hemionus columbianus – Columbian black-tailed deer (Pacific Northwest and Northern California regions)
- Odocoileus hemionus sitkensis – Sitka black-tailed deer (coastal area and islands off western British Columbia)