Eastern Diamondback Rattlesnake
Eastern Diamondback RattlesnakeEastern Diamondback RattlesnakeEastern Diamondback RattlesnakeEastern Diamondback Rattlesnake

Eastern Diamondback Rattlesnake

Crotalus adamanteus

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered Endemic
10–20% · With luck
overall probability at Everglades National Park
223 Verified records at Everglades National Park
October Best month highest sighting rate
☀️ Diurnal When it's active during daytime hours (6am–6pm)

The eastern diamondback rattlesnake (Crotalus adamanteus) is a species of pit viper in the family Viperidae. The species is endemic to the Southeastern United States. It is the largest rattlesnake species and one of the heaviest venomous snakes in the Americas. No subspecies are recognized. Wikipedia →

10–20% of wildlife watchers report a Eastern Diamondback Rattlesnake sighting in Everglades National Park, based on 223 days of visitor records from GBIF citizen-science data.

Closest Relatives at Everglades National Park

Florida Cottonmouth
Endemic

Florida Cottonmouth

🌙 Nocturnal Reptile

Agkistrodon conanti

40–50% · Possible
Pygmy Rattlesnake
LC Endemic

Pygmy Rattlesnake

☀️🌙 Day & Night Reptile

Sistrurus miliarius

5–10% · With luck

📅 Monthly Probability

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

☀️ When They're Spotted

Most active during daytime hours (6am–6pm) · across all parks (global)

☀️Diurnal
☀️🌙🌙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 Big Cypress National Preserve 🇺🇸 United States
20–30%
2 Everglades National Park 🇺🇸 United States
10–20%

Quick answers

What are the chances of seeing a Eastern Diamondback Rattlesnake in Everglades National Park?

About 18% of wildlife watchers report a Eastern Diamondback Rattlesnake sighting in Everglades National Park, based on 223 days of visitor records from GBIF citizen-science data.

When is the best time to see Eastern Diamondback Rattlesnake in Everglades National Park?

October has the highest sighting rate for Eastern Diamondback Rattlesnake in Everglades National Park in our monthly data.

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