Sibon annulatus
Silhouette: Alex Slavenko · PhyloPic
In 3 days ~50% in a week ~80%
Sibon annulatus, also known as the ringed snail sucker, is a species of snake in the family, Colubridae. It is found in Costa Rica, Panama, Nicaragua, Honduras, Colombia, and Ecuador. Species Sibon annulatus at The Reptile Database Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Braulio Carrillo National Park | 🇨🇷 Costa Rica | |
| 2 | Arenal Volcano National Park | 🇨🇷 Costa Rica | |
| 3 | Tapantí-Macizo de la Muerte National Park | 🇨🇷 Costa Rica |
Possible
About 20% of wildlife watchers report a Ringed Snail Sucker sighting in Braulio Carrillo National Park on a given day, based on 34 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 25th most-seen of the 57 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.
May and November
In those months about 30% of wildlife watchers report a Ringed Snail Sucker in Braulio Carrillo National Park on a given day, against under 5% in April, August and October, the lowest months.
Between 7 and 10 pm
Across all the parks we cover, that three-hour window holds the most Ringed Snail Sucker sightings with a recorded time, and about 9 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
Yes
Of the 3 parks where we can rate Ringed Snail Sucker sightings, Braulio Carrillo National Park has the highest daily chance: about 20%. Next come Arenal Volcano National Park (Costa Rica, about 10%) and Tapantí-Macizo de la Muerte National Park (Costa Rica, about 10%).
Same genus: Sibon
The closest relatives of the Ringed Snail Sucker that you can see in Braulio Carrillo National Park (genus Sibon, Snail Suckers) are Cloudy Snail-eating Snake (about 30%) and Mottled Snail-eater (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Ringed Snail Sucker is recorded against all the reptiles logged in Braulio Carrillo National Park (34 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.
