Salvadora hexalepis
Silhouette: Alex Slavenko · PhyloPic
In 3 days ~60% in a week ~90%
Salvadora hexalepis, the western patch-nosed snake, is a species of non-venomous colubrid snake, which is endemic to the southwestern United States and northern Mexico. It is found in the southwestern United States in the states of Arizona, southern California, Nevada, southern New Mexico, and southwestern Texas. It is also found in northern Mexico in the Mexican states of Baja California, Baja California Sur, Chihuahua, Sinaloa, and Sonora.
The western patch-nosed snake inhabits arid deserts in its area. It feeds upon lizards, snakes, reptile eggs, and small rodents. 4-10 eggs are laid during spring or early summer and hatch in August through... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Death Valley National Park | 🇺🇸 United States | |
| 2 | Joshua Tree National Park | 🇺🇸 United States | |
| 3 | El Vizcaíno Biosphere Reserve | 🇲🇽 Mexico | |
| 4 | Grand Canyon National Park | 🇺🇸 United States | |
| 5 | Saguaro National Park | 🇺🇸 United States | |
| 6 | Zion National Park | 🇺🇸 United States |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Arizona-Sonora Desert Museum | 🇺🇸 United States |
Possible
About 30% of wildlife watchers report a Western Patch-nosed Snake sighting in Death Valley National Park on a given day, based on 30 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 16th most-seen of the 30 reptiles we can rate there. Over three days the chance rises to about 60%, and over a week to about 90%, if each day is a fresh chance.
April and July–August
In those months about 40% of wildlife watchers report a Western Patch-nosed Snake in Death Valley National Park on a given day, against under 5% in January–February and September, the lowest months.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Western Patch-nosed Snake sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 6 parks where we can rate Western Patch-nosed Snake sightings, Death Valley National Park has the highest daily chance: about 30%. Next come Joshua Tree National Park (United States, about 20%) and El Vizcaíno Biosphere Reserve (Mexico, about 20%).
Same family: Colubridae
The closest relatives of the Western Patch-nosed Snake that you can see in Death Valley National Park (family Colubridae, Colubrid Snakes) are Coachwhip (about 30%), Gopher Snake (about 30%) and Long-nosed Snake (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Western Patch-nosed Snake is recorded against all the reptiles logged in Death Valley National Park (30 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
