Epicrates crassus
Silhouette: Alex Slavenko · PhyloPic
In 3 days ~50% in a week ~80%
The Paraguayan rainbow boa (Epicrates crassus) is a species of snake in the family Boidae. The species is found in Argentina, Brazil, and Paraguay. Wikipedia →
Recording0:18
Brazil · 2026
© danielfadeljr · iNaturalist · CC BY-NC 4.0
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Emas National Park | 🇧🇷 Brazil |
More parks will be added in future updates.
Possible
About 20% of wildlife watchers report an Eastern Rainbow Boa sighting in Emas National Park on a given day, based on 8 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 11th most-seen of the 11 reptiles we can rate there. Over three days the chance rises to about 50%, and over a week to about 80%, if each day is a fresh chance.
January–February and May–June
In those months about 40% of wildlife watchers report an Eastern Rainbow Boa in Emas National Park on a given day, against under 5% in March–April and July–December, the lowest months.
Between 6 and 9 pm
Across all the parks we cover, that three-hour window holds the most Eastern Rainbow Boa sightings with a recorded time, and about half of them come between 6 am and 6 pm: it is seen both by day and at night.
Only Emas National Park, in our data
Emas National Park is the only park on Wallace's Line with enough records to rate Eastern Rainbow Boa sightings: about 20% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Eastern Rainbow Boa is recorded against all the reptiles logged in Emas National Park (8 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.
