Sibon anthracops
Silhouette: Alex Slavenko · PhyloPic
In 3 days ~50% in a week ~80%
Sibon anthracops, also known as Cope's snail sucker, is a species of snake in the family, Colubridae. It is found in Costa Rica, Nicaragua, Honduras, Guatemala, and El Salvador. Species Sibon anthracops at The Reptile Database Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Santa Rosa National Park | 🇨🇷 Costa Rica | |
| 2 | Palo Verde National Park | 🇨🇷 Costa Rica |
Possible
About 20% of wildlife watchers report a Cope's Snail Sucker sighting in Palo Verde National Park on a given day, based on 12 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 12th most-seen of the 21 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.
August and October–November
In those months about 50% of wildlife watchers report a Cope's Snail Sucker in Palo Verde National Park on a given day, against under 5% in January–March, May–July and September, the lowest months. Those are among Palo Verde National Park's wettest months, with about 340 mm of rain a month against almost none in February.
Between 9 pm and midnight
Across all the parks we cover, that three-hour window holds the most Cope's Snail Sucker sightings with a recorded time, and about 8 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
2nd of 2
Of the 2 parks where we can rate Cope's Snail Sucker sightings, Palo Verde National Park ranks 2nd at about 20%. The best odds are in Santa Rosa National Park (Costa Rica, about 30%).
Same family: Colubridae
The closest relatives of the Cope's Snail Sucker that you can see in Palo Verde National Park (family Colubridae, Colubrid Snakes) are Central American Lyresnake (about 40%), Rhombic Cat-eyed Snake (about 40%) and Western Ribbon Snake (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Cope's Snail Sucker is recorded against all the reptiles logged in Palo Verde National Park (12 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.
