Thamnophis eques
Silhouette: Alex Slavenko · PhyloPic
In 3 days ~20% in a week ~40%
The Mexican garter snake (Thamnophis eques) is a species of snake in the family Colubridae. It is found in Mexico and in the United States (Arizona and New Mexico). This harmless snake is semi-aquatic and most of the 10 recognized subspecies are restricted to lake basins in Mexico.
This snake ranges in habitat from deserts and sky island forests of Arizona and New Mexico to the thornscrub and rainforests of Mexico. One subspecies, the Lake Chapala garter snake (T. e. obscurus), is endemic to Lake Chapala.
This snake is a generalist carnivore, feeding on a wide variety of prey, such as lizards, frogs, toads, tadpoles, fish, and even from time to time earthworms, snails, insects, and small mammals. In north-central Arizona, Northern Mexican garter snake potential aquatic prey captured during minnow trap surveys include nonnative species such as western mosquitofish, red shiners, green sunfish, bluegills, smallmouth bass, largemouth bass, yellow bullheads, black bullheads, common carp, and American bullfrogs (tadpoles, juveniles and subadults). As well as native species such as Woodhouse’s toads (tadpoles, juveniles and adults) and Sonora mud turtles (hatchlings).
Ten... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Toluca | 🇲🇽 México | |
| 2 | Mexico City | 🇲🇽 México |
With luck
About 10% of wildlife watchers report a Mexican Gartersnake sighting in Mexico City on a given day, based on 76 verified sightings from GBIF citizen-science data. It is the 12th most-seen of the 37 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.
March to September
In those months about 10% of wildlife watchers report a Mexican Gartersnake in Mexico City on a given day, against under 5% in October to February, the lowest months.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Mexican Gartersnake sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
2nd of 2
Of the 2 cities where we can rate Mexican Gartersnake sightings, Mexico City ranks 2nd at about 10%. The best odds are in Toluca (México, about 20%).
Same genus: Thamnophis
The closest relatives of the Mexican Gartersnake that you can see in Mexico City (genus Thamnophis, Garter Snakes) are Blackbelly Garter Snake (about 10%) and Short-tail Alpine Garter Snake (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Mexican Gartersnake is recorded against all the reptiles logged in Mexico City (76 verified sightings), 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.
