Corallus ruschenbergerii
Silhouette: T. Michael Keesey (from a photo by Maximilian Paradiz) · PhyloPic
In 3 days ~80% in a week >90%
Corallus ruschenbergerii, commonly known as the Central American tree boa, common tree boa, and Trinidad tree boa, is a boa species found in lower Central America and northern South America. No subspecies are currently recognized. Like all boas, it is not venomous.
The specific name, ruschenbergerii, is in honor of William Ruschenberger, who was a United States Navy surgeon. Corallus ruschenbergerii is one of the largest members of the genus Corallus with adults reaching up to 2 metres (6 ft 7 in) in total length (including tail). The colors are typically shades of yellow, brown or gray, although populations on Trinidad and Tobago are often a patternless pure bronze.
Corallus ruschenbergerii is found in Lower Central America in southwestern Costa Rica (south of 10° N) and Panama, including Isla del Rey, Isla Contadora, Isla de Cébaco and Isla Suscantupu. In South America it occurs in Colombia east of the Andes, north of the Cordillera Central and north of the Cordillera Oriental, northern Venezuela north of the Cordillera de Mérida and in the drainage of the Río Orinoco, north and west of the Guiana Shield, east of the Orinoco... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Caroni Swamp | 🇹🇹 Trinidad and Tobago | |
| 2 | Main Ridge Forest Reserve | 🇹🇹 Trinidad and Tobago | |
| 3 | Tayrona National Natural Park | 🇨🇴 Colombia | |
| 4 | Piedras Blancas National Park | 🇨🇷 Costa Rica | |
| 5 | Manuel Antonio National Park | 🇨🇷 Costa Rica |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Pairi Daiza | 🇧🇪 Belgium | |
| 2 | Zoo Miami | 🇺🇸 United States | |
| 3 | Woodland Park Zoo | 🇺🇸 United States | |
| 4 | Touroparc Zoo | 🇫🇷 France |
Likely
About 40% of wildlife watchers report a Dormilona sighting in Main Ridge Forest Reserve on a given day, based on 18 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 7th most-seen of the 24 reptiles we can rate there. Over three days the chance rises to about 80%, and over a week to over 90%, if each day is a fresh chance.
April and October
In those months about 60% of wildlife watchers report a Dormilona in Main Ridge Forest Reserve on a given day, against under 5% in January to March, the lowest months.
Between 7 and 10 pm
Across all the parks we cover, that three-hour window holds the most Dormilona sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is seen both by day and at night.
2nd of 5
Of the 5 parks where we can rate Dormilona sightings, Main Ridge Forest Reserve ranks 2nd at about 40%. The best odds are in Caroni Swamp (Trinidad and Tobago, about 80%). All parks ranked.
GBIF citizen-science records
It is estimated from how often the Dormilona is recorded against all the reptiles logged in Main Ridge Forest Reserve (18 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.
