Berg Adder

Berg Adder

Bitis atropos

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
Daily sighting probability Insufficient data
at Golden Gate Highlands National Park
2 Verified sightings at Golden Gate Highlands National Park From 2019 to 2026
61 Verified sightings across all 4 parks From 2019 to 2026
☀️ Diurnal When it's spotted during daytime hours (6am–6pm)

About the Berg Adder

The berg adder (Bitis atropos) is a viper species endemic to mountainous regions in southern Africa. No subspecies are currently recognized. The specific name, atropos, refers to the Greek mythological goddess Atropos, who was one of the Three Fates, the one who cut the thread of life. The type locality given is "America", but this is obviously a mistake. More likely, it is the Cape of Good Hope, according to FitzSimons (1962).

Its common names include berg adder, Cape mountain adder, and mountain adder. The typical adult size of B. atropos is 30–40 cm (about 12–16 in) in total length (body and tail), with some females reaching a maximum total length of 50 cm (20 in) in the wild and 60 cm (24 in) in captivity. B. atropos is found in isolated populations of the mountainous regions of southern Africa. In South Africa, the species is known to occur in the Transvaal, along the Drakensberg escarpment of the eastern and northern Transvaal. Elsewhere in South Africa, it occurs in western Natal, Lesotho, and eastern Free State, and in the southern coastal mountains of western and eastern Cape Province. Spawls and Branch (1995)... Wikipedia →

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 Daily sighting probability
1 Garden Route National Park 🇿🇦 South Africa
~10%
2 Table Mountain National Park 🇿🇦 South Africa
~10%
3 Golden Gate Highlands National Park 🇿🇦 South Africa
Insufficient data
4 Addo Elephant National Park 🇿🇦 South Africa
Insufficient data
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