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Smithsonian National Museum of Natural History, North American Mammals

  Rodentia · Sciuridae · Ammospermophilus leucurus

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Ammospermophilus leucurus

White-tailed Antelope Squirrel

Order: Rodentia
Family: Sciuridae

Image of Ammospermophilus leucurus
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Conservation Status: Least Concern.

White-tailed Antelope Squirrels can often be seen in western and southwestern deserts, especially in shrubby areas with rocky soil. They do not hibernate, but in cold winter weather several may huddle together in a burrow to keep warm. They breed from February to June, producing litters of 5-14 offspring. The young begin to appear aboveground when they are about six or seven weeks old, and nurse for about two months. Adults eat both plant matter and insects.

Also known as:

White-tailed Antelope Ground Squirrel, White-tailed Ground Squirrel, Antelope Chipmunk

Sexual Dimorphism:



Average: 211 mm
Range: 188-239 mm


Average: 105 g
Range: 96-117 g


Merriam, C.H., 1889.  Descriptions of fourteen new species and one new genus of North American mammals, p. 20.  North American Fauna, 2:1-52.


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Distribution of Ammospermophilus leucurus

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