Western Whiptail

Western Whiptail

Aspidoscelis tigris

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered Endemic
Daily sighting probability ~30% · Possible
at Saguaro National Park
713 Verified sightings at Saguaro National Park From 2019 to 2026
2,556 Verified sightings across all 10 parks From 2019 to 2026
July Best month highest sighting rate
☀️ Diurnal When it's spotted during daytime hours (6am–6pm)

About the Western Whiptail

The western whiptail (Aspidoscelis tigris) is a species of lizard in the family Teiidae. The species is found throughout most of the southwestern United States and northern Mexico. Most of its populations appear stable, and it is not listed as endangered in any of the states comprising its range. It lives in a wide variety of habitats, including deserts and semiarid shrubland, usually in areas with sparse vegetation; it also may be found in woodland, open dry forest, and riparian growth. It lives in burrows. Major differences between this species and the checkered whiptail (Aspidoscelis tesselatus) include the lack of enlarged scales anterior to the gular fold and the presence of enlarged postantebrachial scales. It was previously known as Cnemidophorus tigris, until phylogenetic analyses concluded that the genus Cnemidophorus was polyphyletic. Since it does not migrate, a number of forms have developed in different regions, several of which have been given subspecific names – for example the California whiptail, Aspidoscelis tigris munda.

Including the nominotypical subspecies, 16 subspecies of Aspidoscelis tigris are recognized as being valid. A... Wikipedia →

Global Distribution

Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.

where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is)  ·  parks where it occurs — tap a pin for the sighting probability there

Parks Where Found

# Park Country Daily sighting probability
1 Zion National Park 🇺🇸 United States
~50%
2 Joshua Tree National Park 🇺🇸 United States
~50%
3 Death Valley National Park 🇺🇸 United States
~40%
4 Grand Canyon National Park 🇺🇸 United States
~40%
5 Saguaro National Park 🇺🇸 United States
~30%
6 El Vizcaíno Biosphere Reserve 🇲🇽 Mexico
~20%
7 Sequoia and Kings Canyon National Parks 🇺🇸 United States
~20%
8 Yosemite National Park 🇺🇸 United States
~10%
9 Bahía de Loreto National Park 🇲🇽 Mexico
~10%
10 Channel Islands National Park 🇺🇸 United States
~10%

Quick answers

What are the chances of seeing a Western Whiptail in Saguaro National Park?

About 30% of wildlife watchers report a Western Whiptail sighting in Saguaro National Park, based on 713 verified sightings from GBIF citizen-science data.

When is the best time to see Western Whiptail in Saguaro National Park?

July has the highest sighting rate for Western Whiptail in Saguaro National Park in our monthly data.

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