Horned Adder
Horned AdderHorned AdderHorned AdderHorned Adder

Horned Adder

Bitis caudalis

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
20–30% · Possible
overall probability at Namib-Naukluft National Park
107 Verified records at Namib-Naukluft National Park
May Best month highest sighting rate
☀️ Diurnal When it's active during daytime hours (6am–6pm)

The horned adder (Bitis caudalis) is a viper species. It is found in the arid region of southwest Africa, in Angola, Botswana, Namibia; South Africa, and Zimbabwe. It is easily distinguished by the presence of a single, large horn-like scale over each eye. No subspecies are currently recognized. Like all other vipers, it is venomous. Wikipedia →

20–30% of wildlife watchers report a Horned Adder sighting in Namib-Naukluft National Park, based on 107 days of visitor records from GBIF citizen-science data.

Closest Relatives at Namib-Naukluft National Park

🦎 No photo available
LC

Many-horned Adder

Reptile

Bitis cornuta

10–20% · With luck
Puff Adder
LC

Puff Adder

☀️ Diurnal Reptile

Bitis arietans

5–10% · With luck

📅 Monthly Probability

20–30
Jan
10–20
Feb
30–40
Mar
30–40
Apr
40–50
May
30–40
Jun
20–30
Jul
20–30
Aug
20–30
Sep
30–40
Oct
10–20
Nov
30–40
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 Namib-Naukluft National Park 🇳🇦 Namibia
20–30%
2 Kgalagadi Transfrontier Park 🇿🇦 South Africa
Insufficient data
3 Etosha National Park 🇳🇦 Namibia
Insufficient data

Quick answers

What are the chances of seeing a Horned Adder in Namib-Naukluft National Park?

About 29% of wildlife watchers report a Horned Adder sighting in Namib-Naukluft National Park, based on 107 days of visitor records from GBIF citizen-science data.

When is the best time to see Horned Adder in Namib-Naukluft National Park?

May has the highest sighting rate for Horned Adder in Namib-Naukluft National Park in our monthly data.

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