Chihuahuan Black-headed Snake
Tantilla wilcoxi
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassSquamata
- FamilyColubridae (Colúbrids)
- GenusTantilla (Centipede Snakes)
- SpeciesTantilla wilcoxi (Chihuahuan Black-headed Snake)
Closest Relatives at Cumbres de Monterrey National Park
Red Black-headed Snake
Tantilla rubra
Northern Cat-eyed Snake
Leptodeira septentrionalis
Great Plains Ratsnake
Pantherophis emoryi
Baird's Ratsnake
Pantherophis bairdi
Western Ribbon Snake
Thamnophis proximus
Speckled Racer
Drymobius margaritiferus
Diamondback Watersnake
Nerodia rhombifer
Central American Indigo Snake
Drymarchon melanurus
Nuevo Leon Graceful Brown Snake
Rhadinaea montana
Mexican Parrot Snake
Leptophis mexicanus
Checkered Garter Snake
Thamnophis marcianus
Gopher Snake
Pituophis catenifer
📅 Monthly Probability
Fewer than 5 records of Chihuahuan Black-headed Snake at Cumbres de Monterrey National Park — not enough to chart months honestly.
☀️🌙 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 | Cumbres de Monterrey National Park | 🇲🇽 Mexico |
More parks will be added in future updates.