Sibon annulatus
Silhouette: Alex Slavenko · PhyloPic
In 3 days ~20% in a week ~40%
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 |
With luck
About 10% of wildlife watchers report a Ringed Snail Sucker sighting in Tapantí-Macizo de la Muerte National Park on a given day, based on 9 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 14th most-seen of the 23 reptiles we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
February
In that month about 20% of wildlife watchers report a Ringed Snail Sucker in Tapantí-Macizo de la Muerte National Park on a given day, against under 5% in March and June–January, the lowest months. That is one of Tapantí-Macizo de la Muerte National Park's driest months, with about 160 mm of rain against 570 mm in October.
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.
3rd of 3
Of the 3 parks where we can rate Ringed Snail Sucker sightings, Tapantí-Macizo de la Muerte National Park ranks 3rd at about 10%. The best odds are in Braulio Carrillo National Park (Costa Rica, about 20%) and Arenal Volcano National Park (Costa Rica, about 10%).
GBIF citizen-science records
It is estimated from how often the Ringed Snail Sucker is recorded against all the reptiles logged in Tapantí-Macizo de la Muerte National Park (9 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.
