Northern Cottonmouth

Northern Cottonmouth

Agkistrodon piscivorus

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered Endemic
60–70% · Likely
overall probability at Congaree National Park

Closest Relatives at Congaree National Park

Eastern Copperhead
LC Endemic

Eastern Copperhead

☀️🌙 Day & Night Reptile

Agkistrodon contortrix

30–40% · Possible
Timber Rattlesnake
LC

Timber Rattlesnake

☀️ Diurnal Reptile

Crotalus horridus

10–20% · With luck

📅 Monthly Probability

10–20
Jan
20–30
Feb
50–60
Mar
70–80
Apr
70–80
May
70–80
Jun
70–80
Jul
80–90
Aug
60–70
Sep
60–70
Oct
20–30
Nov
20–30
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 Congaree National Park 🇺🇸 United States
60–70%

More parks will be added in future updates.

Quick answers

What are the chances of seeing a Northern Cottonmouth in Congaree National Park?

About 64% of visitor-days record a Northern Cottonmouth sighting in Congaree National Park, based on 178 observer-days of citizen-science data from GBIF.

When is the best time to see Northern Cottonmouth in Congaree National Park?

August has the highest sighting rate for Northern Cottonmouth in Congaree National Park in our monthly data.

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