Pituophis deppei
Silhouette: Alex Slavenko · PhyloPic
In 3 days ~40% in a week ~70%
Pituophis deppei, commonly known as the Mexican bullsnake and the Mexican pine snake, is a species of nonvenomous colubrid snake endemic to Mexico. There are two recognized subspecies. The specific name, deppei, is in honor of German artist Ferdinand Deppe, who collected natural history specimens in Mexico.
The subspecific name, jani, is in honor of Italian herpetologist Giorgio Jan. P. deppei occurs in the Mexican states of Aguascalientes, Coahuila, Guanajuato, Hidalgo, Jalisco, Mexico, Morelos, Nayarit, Nuevo León, Oaxaca, Puebla, Querétaro, San Luis Potosí, Sinaloa, Sonora, and Tamaulipas. The preferred natural habitats of P. deppei are forest, shrubland, and grassland, but it is also found in agricultural, suburban, and urban areas.
Dorsally, P. deppei is yellowish tan, with a series of large quadrangular blotches, which are dark brown to black. It has smaller dark spots on the sides. Ventrally, it is yellowish, with squarish brown spots. Adults may attain a total length of 1.69 m (5.5 ft), including a tail length of 18 cm (7.1 in).
P. deppei is oviparous. Two subspecies... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | León | 🇲🇽 México | |
| 2 | Puebla | 🇲🇽 México | |
| 3 | Mexico City | 🇲🇽 México | |
| 4 | San Luis Potosí | 🇲🇽 México | |
| 5 | Guadalajara | 🇲🇽 México |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Cabarceno Natural Park | 🇪🇸 Spain | |
| 2 | Cape May County Park & Zoo | 🇺🇸 United States | |
| 3 | Zoológico de San Juan de Aragón | 🇲🇽 Mexico | |
| 4 | Caldwell Zoo | 🇺🇸 United States | |
| 5 | Zoológico la pastroa | 🇲🇽 Mexico | |
| 6 | Chapultepec Zoo | 🇲🇽 Mexico | |
| 7 | Zoológico Los Coyotes | 🇲🇽 Mexico | |
| 8 | Parque de las Leyendas | 🇵🇪 Peru | |
| 9 | Gladys Porter Zoo | 🇺🇸 United States | |
| 10 | Acuario Inbursa | 🇲🇽 Mexico | |
| 11 | Reino Animal | 🇲🇽 Mexico | |
| 12 | Seattle Marine Aquarium | 🇺🇸 United States |
Possible
About 20% of wildlife watchers report a Mexican Bull Snake sighting in Mexico City on a given day, based on 301 verified sightings from GBIF citizen-science data. It is the 4th most-seen of the 37 reptiles we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
August
In that month about 30% of wildlife watchers report a Mexican Bull Snake in Mexico City on a given day, against about 10% in November to May, the lowest months. That is one of Mexico City's wettest months, with about 150 mm of rain against 5 mm in December.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Mexican Bull Snake sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 5 cities where we can rate Mexican Bull Snake sightings, Mexico City ranks 3rd at about 20%, level with the leaders once rounded. The best odds are in León (México, about 20%) and Puebla (México, about 20%).
Same family: Colubridae
The closest relatives of the Mexican Bull Snake that you can see in Mexico City (family Colubridae, Colubrid Snakes) are Lined Tolucan Ground Snake (about 20%), Blackbelly Garter Snake (about 10%) and Mexican Brown Snake (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Mexican Bull Snake is recorded against all the reptiles logged in Mexico City (301 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.
