Southwestern Speckled Rattlesnake
Southwestern Speckled RattlesnakeSouthwestern Speckled RattlesnakeSouthwestern Speckled RattlesnakeSouthwestern Speckled Rattlesnake

Southwestern Speckled Rattlesnake

Crotalus pyrrhus

Endemic
20–30% · Possible
overall probability at Joshua Tree National Park
372 Verified records at Joshua Tree National Park
May Best month highest sighting rate
🌅 Crepuscular When it's active at dawn and dusk

Common names: southwestern speckled rattlesnake, Mitchell's rattlesnake, more. Crotalus pyrrhus is a venomous pitviper species found in the southwestern United States and northwestern Mexico. A medium-sized snake, it is found mostly in rocky country, active at night and feeding on small mammals. The coloration is variable and depends on the color of the rocks and soil of the habitat. Wikipedia →

20–30% of wildlife watchers report a Southwestern Speckled Rattlesnake sighting in Joshua Tree National Park, based on 372 days of visitor records from GBIF citizen-science data.

Closest Relatives at Joshua Tree National Park

Sidewinder
LC

Sidewinder

🌙 Nocturnal Reptile

Crotalus cerastes

10–20% · With luck
Western Rattlesnake
LC

Western Rattlesnake

☀️🌙 Day & Night Reptile

Crotalus oreganus

5–10% · With luck
Mohave Rattlesnake
LC

Mohave Rattlesnake

☀️🌙 Day & Night Reptile

Crotalus scutulatus

5–10% · With luck
Red Diamond Rattlesnake
LC

Red Diamond Rattlesnake

☀️🌙 Day & Night Reptile

Crotalus ruber

5–10% · With luck
Western Diamondback Rattlesnake
LC Endemic

Western Diamondback Rattlesnake

🌙 Nocturnal Reptile

Crotalus atrox

<5% · Rare

📅 Monthly Probability

<5
Jan
<5
Feb
20–30
Mar
30–40
Apr
40–50
May
30–40
Jun
20–30
Jul
30–40
Aug
30–40
Sep
20–30
Oct
<5
Nov
5–10
Dec

🌅 When They're Spotted

Most active at dawn and dusk · across all parks (global)

🌅Crepuscular
☀️🌙🌙12am6am12pm6pm12am

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 Probability
1 Joshua Tree National Park 🇺🇸 United States
20–30%
2 Grand Canyon National Park 🇺🇸 United States
10–20%

Quick answers

What are the chances of seeing a Southwestern Speckled Rattlesnake in Joshua Tree National Park?

About 29% of wildlife watchers report a Southwestern Speckled Rattlesnake sighting in Joshua Tree National Park, based on 372 days of visitor records from GBIF citizen-science data.

When is the best time to see Southwestern Speckled Rattlesnake in Joshua Tree National Park?

May has the highest sighting rate for Southwestern Speckled Rattlesnake in Joshua Tree National Park in our monthly data.

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