Texas Antelope Squirrel

Texas Antelope Squirrel

Ammospermophilus interpres

Silhouette: Joseph Smit · PhyloPic

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
Daily sighting probability ~10% · With luck
at Big Bend National Park
33 Verified sightings at Big Bend National Park From 2019 to 2026
33 Verified sightings across 1 park From 2019 to 2026
October Best month highest sighting rate
☀️ Diurnal When it's spotted during daytime hours (6am–6pm)

About the Texas Antelope Squirrel

The Texas antelope squirrel (Ammospermophilus interpres) is a species of rodent in the family Sciuridae. It is found in Mexico and in both Texas and New Mexico within the United States. Adults can measure up to 220–235 millimetres (8.7–9.3 in) long, and weigh 99–112 grams (0.218–0.247 lb). They have a white stripe along the side of their torso, highlighted with black markings both above and below the stripe. The rest of the fur is grey with either black or brown markings, with the exception of the underside of the tail which is also white. They are active throughout the year and do not hibernate. They are thought to have evolved to their present state by the Clarendonian period (13.6 to 10.3 mya).

The breeding cycle begins in February, with one to two litters of between five and fourteen young raised each year. The young remain in the nest until they are about a quarter grown, which coincides with the move to solid food. Their diet includes insects, seeds and berries, including the fruit and seeds of a variety of cactus species. One adult found in 1905 had eaten the fruit of Opuntia engelmannii in sufficient quantities that its flesh was tinted purple. Wikipedia →

Global Distribution

Warmer areas are where this animal is recorded most often.

Parks Where Found

# Park Country Daily sighting probability
1 Big Bend National Park 🇺🇸 United States
~10%

More parks will be added in future updates.

Quick answers

What are the chances of seeing a Texas Antelope Squirrel in Big Bend National Park?

About 10% of wildlife watchers report a Texas Antelope Squirrel sighting in Big Bend National Park, based on 33 verified sightings from GBIF citizen-science data.

When is the best time to see Texas Antelope Squirrel in Big Bend National Park?

October has the highest sighting rate for Texas Antelope Squirrel in Big Bend National Park in our monthly data.

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