Horned Adder

Horned Adder

Bitis caudalis

Silhouette: Steven Traver · PhyloPic

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
Daily sighting probability ~30% · Possible
at Namib-Naukluft National Park
115 Verified sightings at Namib-Naukluft National Park From 2019 to 2026
122 Verified sightings across all 3 parks From 2019 to 2026
May Best month highest sighting rate
☀️ Diurnal When it's spotted during daytime hours (6am–6pm)

About the Horned Adder

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.

The species is commonly known as the horned adder, horned puff adder, or horned viper. A short, stout little viper, it usually averages 30–40 cm (12–15.5 in) in total length (body + tail). The largest specimen reported being seen is a female from southern Botswana measuring 51.5 cm (20.3 in) total length.

The snake is found in far arid regions of southwest Africa: southwest Angola, Namibia, across the Kalahari Desert of southern Botswana, into northern Transvaal and southwestern Zimbabwe. In South Africa, it is found from the Northern Cape province south to the Great Karoo.

Its type locality is given as "... the sandy districts north of the Cape Colony..." [South Africa]. Horned adders are mostly found in sparsely vegetated desert and semiarid scrub country. Bites are... Wikipedia →

Global Distribution

Warmer areas are where this animal is recorded most often.

Parks Where Found

# Park Country Daily sighting probability
1 Namib-Naukluft National Park 🇳🇦 Namibia
~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 30% of wildlife watchers report a Horned Adder sighting in Namib-Naukluft National Park, based on 115 verified sightings 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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