Corallus batesii
Silhouette: T. Michael Keesey (from a photo by Maximilian Paradiz) · PhyloPic
In 3 days ~70% in a week ~90%
Corallus batesii, also known commonly as the Amazon Basin emerald tree boa, is a species of snake in the subfamily Boinae of the family Boidae. The species is native to the tropical rainforests of South America. This species was revalidated from the synonymy of Corallus caninus by Henderson and colleagues in 2009.
English naturalist John Edward Gray originally described this species as Chrysenis batesii in 1860. The specific name, batesii, is in honor of Henry Walter Bates, an English naturalist and explorer, for whom Batesian mimicry is also named.
The Amazon Basin emerald tree boa has a yellow belly. The dorsum is dark green with an enamel-white vertebral stripe, which has confluent partial crossbars, often bordered by some black spots. C. batesii differs from C. caninus by the shape and the number of scales across the snout. C. batesii is bigger than C. caninus, growing to a total length (including tail) approaching 9 feet (2.7 m).
Corallus batesii is arboreal, and it is both diurnal and nocturnal. Corallus batesii is capable of hunting small airborne prey, such as bats and birds, as well as rodents, opossums... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Manu National Park | 🇵🇪 Peru | |
| 2 | Tambopata National Reserve | 🇵🇪 Peru |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Prague Zoo | 🇨🇿 Czechia | |
| 2 | Shedd Aquarium | 🇺🇸 United States | |
| 3 | ZooParc de Beauval | 🇫🇷 France | |
| 4 | Zoo Miami | 🇺🇸 United States | |
| 5 | Zoological Garden of Belo Horizonte | 🇧🇷 Brazil | |
| 6 | Oklahoma City Zoo and Botanical Garden | 🇺🇸 United States | |
| 7 | Memphis Zoo | 🇺🇸 United States | |
| 8 | Zoo Atlanta | 🇺🇸 United States | |
| 9 | London Zoo | 🇬🇧 United Kingdom | |
| 10 | Riverbanks Zoo | 🇺🇸 United States | |
| 11 | Amaru | 🇪🇨 Ecuador | |
| 12 | Le Cornelle | 🇮🇹 Italy | |
| 13 | Parque Zoobotânico do Museu Paraense Emílio Goeldi | 🇧🇷 Brazil | |
| 14 | Museu Paraense Emílio Goeldi | 🇧🇷 Brazil | |
| 15 | Tennessee Aquarium | 🇺🇸 United States | |
| 16 | Jacques Huber Aquarium | 🇧🇷 Brazil | |
| 17 | Rákosův pavilon | 🇨🇿 Czechia | |
| 18 | Velemlokárium | 🇨🇿 Czechia | |
| 19 | Belo Horizonte Aquarium | 🇧🇷 Brazil |
Possible
About 30% of wildlife watchers report a Bates's Tree Boa sighting in Manu National Park on a given day, based on 61 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 4th most-seen of the 56 reptiles we can rate there. Over three days the chance rises to about 70%, and over a week to about 90%, if each day is a fresh chance.
April, September and November–December
In those months about 40% of wildlife watchers report a Bates's Tree Boa in Manu National Park on a given day, against about 20% in January and June–August, the lowest months.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Bates's Tree Boa 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.
Yes
Of the 2 parks where we can rate Bates's Tree Boa sightings, Manu National Park has the highest daily chance: about 30%. Next come Tambopata National Reserve (Peru, about 20%).
GBIF citizen-science records
It is estimated from how often the Bates's Tree Boa is recorded against all the reptiles logged in Manu National Park (61 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.
