Pseudoboa neuwiedii
Silhouette: Alex Slavenko · PhyloPic
In 3 days ~40% in a week ~70%
Pseudoboa neuwiedii, commonly known as the dark-headed red false boa or Neuwied's false boa, is a species of snake in the subfamily Dipsadinae of the family Colubridae. The species is native to northern South America. Pseudoboa neuwiedii is found on the mainland of South America from Colombia to The Guianas, and in Brazil along the Amazon River, as well as in Grenada, and Trinidad and Tobago.
The specific name, neuwiedii, is in honor of German naturalist Prince Maximilian of Wied-Neuwied. Pseudoboa neuwiedii grows to a maximum total length (tail included) of 1 m (39 in). Dorsally, it is reddish brown, either uniform or with some scattered small black spots. The top of the head and neck are black or dark brown. There may or may not be a yellowish crossband or collar across the temples and occiput. Ventrally, it is yellowish. This snake is venomous, but due the anatomy of its teeth it has difficulty in inoculating venom, its venom is highly proteolytic and could affect the coagulation by degrading the fibrinogen.
Pseudoboa neuwiedii is a powerful constrictor. Pseudoboa neuwiedii feeds on any animal... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Main Ridge Forest Reserve | 🇹🇹 Trinidad and Tobago | |
| 2 | Tayrona National Natural Park | 🇨🇴 Colombia |
With luck
About 10% of wildlife watchers report a Neuwied's False Boa sighting in Tayrona National Natural Park on a given day, based on 5 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 24th most-seen of the 26 reptiles we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
June–July and October
In those months about 30% of wildlife watchers report a Neuwied's False Boa in Tayrona National Natural Park on a given day, against under 5% in February–May, August–September and November–December, the lowest months. Those are among Tayrona National Natural Park's wettest months, with about 150 mm of rain a month against 5 mm in January.
Between 7 and 10 pm
Across all the parks we cover, that three-hour window holds the most Neuwied's False Boa sightings with a recorded time, and about 6 in 10 of them come between 6 pm and 6 am: it is seen both by day and at night.
2nd of 2
Of the 2 parks where we can rate Neuwied's False Boa sightings, Tayrona National Natural Park ranks 2nd at about 10%. The best odds are in Main Ridge Forest Reserve (Trinidad and Tobago, about 30%).
Same family: Colubridae
The closest relatives of the Neuwied's False Boa that you can see in Tayrona National Natural Park (family Colubridae, Colubrid Snakes) are Venezuelan Cat-eyed Snake (about 40%), Cloudy Snail-eating Snake (about 30%) and Blunthead Tree Snake (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Neuwied's False Boa is recorded against all the reptiles logged in Tayrona National Natural Park (5 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
