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

Southwestern Speckled Rattlesnake

Crotalus pyrrhus

Endemic
10–20% · With luck
overall probability at Grand Canyon National Park
8 Verified records at Grand Canyon National Park
April 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 →

10–20% of wildlife watchers report a Southwestern Speckled Rattlesnake sighting in Grand Canyon National Park, based on 8 days of visitor records from GBIF citizen-science data.

Closest Relatives at Grand Canyon National Park

Western Rattlesnake
LC

Western Rattlesnake

☀️🌙 Day & Night Reptile

Crotalus oreganus

20–30% · Possible
Western Black-tailed Rattlesnake
LC

Western Black-tailed Rattlesnake

☀️🌙 Day & Night Reptile

Crotalus molossus

Insufficient data
Mohave Rattlesnake
LC

Mohave Rattlesnake

☀️🌙 Day & Night Reptile

Crotalus scutulatus

Insufficient data
Sidewinder
LC

Sidewinder

🌙 Nocturnal Reptile

Crotalus cerastes

Insufficient data

📅 Monthly Probability

<5
Jan
<5
Feb
5–10
Mar
10–20
Apr
10–20
May
10–20
Jun
5–10
Jul
<5
Aug
10–20
Sep
5–10
Oct
5–10
Nov
<5
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 Grand Canyon National Park?

About 10% of wildlife watchers report a Southwestern Speckled Rattlesnake sighting in Grand Canyon National Park, based on 8 days of visitor records from GBIF citizen-science data.

When is the best time to see Southwestern Speckled Rattlesnake in Grand Canyon National Park?

April has the highest sighting rate for Southwestern Speckled Rattlesnake in Grand Canyon National Park in our monthly data.

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