Big Ground Snake
Atractus major
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassSquamata
- FamilyColubridae (Colúbrids)
- GenusAtractus (Ground Snakes)
- SpeciesAtractus major (Big Ground Snake)
10–20% of wildlife watchers report a Big Ground Snake sighting in Yasuní National Park, based on 11 days of visitor records from GBIF citizen-science data.
Closest Relatives at Yasuní National Park
Blunthead Tree Snake
Imantodes cenchoa
Diurnal Vine Snake
Xenoxybelis argenteus
Catesby's Snail-eater
Dipsas catesbyi
Mountain Keelback
Helicops angulatus
Wagler's Sipo
Chironius scurrulus
Tropical Flat Snake
Siphlophis compressus
South American Sipo
Chironius multiventris
Northern Woodland Racer
Drymoluber dichrous
Olive Forest Racer
Dendrophidion dendrophis
Chicken Snake
Spilotes pullatus
Panama Spotted Night Snake
Siphlophis cervinus
Blind Ground Snake
Erythrolamprus typhlus
📅 Monthly Probability
☀️🌙 When They're Spotted
Active throughout day and night · across all parks (global)
Global Distribution
Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.
where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is) · parks where it occurs — tap a pin for the sighting probability there
Parks Where Found
| # | Park | Country | Probability |
|---|---|---|---|
| 1 | Yasuní National Park | 🇪🇨 Ecuador | |
| 2 | Cuyabeno Wildlife Reserve | 🇪🇨 Ecuador | |
| 3 | Podocarpus National Park | 🇪🇨 Ecuador | |
| 4 | Tambopata National Reserve | 🇵🇪 Peru | |
| 5 | Manu National Park | 🇵🇪 Peru |
Quick answers
What are the chances of seeing a Big Ground Snake in Yasuní National Park?
About 11% of wildlife watchers report a Big Ground Snake sighting in Yasuní National Park, based on 11 days of visitor records from GBIF citizen-science data.
When is the best time to see Big Ground Snake in Yasuní National Park?
December has the highest sighting rate for Big Ground Snake in Yasuní National Park in our monthly data.