Philodryas nattereri
Silhouette: Alex Slavenko · PhyloPic
In 3 days ~20% in a week ~40%
Philodryas nattereri, also known commonly as the Paraguay green racer and the Paraguayan green racer, is a species of venomous snake in the subfamily Dipsadinae of the family Colubridae. The species is native to eastern South America.
The specific name, nattereri, is in honor of Austrian naturalist Johann Natterer. Adults of Philodryas nattereri have an average total length (tail included) of 80 cm (31 in), but it can grow to a maximum total length of 1.34 m (4.4 ft). It is characterized by a medium body, a long, slender tail, a slightly prominent and obliquely truncated snout, and moderately large eyes with round pupils. Its coloring varies from brown to gray, giving it camouflage against ground foliage.
Philodryas nattereri is a fast snake with terrestrial habits, although recent studies have shown that this species can use arboreal environments with high efficiency. It is active during the day and can be quite aggressive when threatened. P. nattereri is opisthoglyphous (rear-fanged), and due to this dentition, it has difficulty injecting venom into large prey.
Philodryas nattereri is found in eastern... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Brasilia | 🇧🇷 Brazil |
With luck
About 10% of wildlife watchers report a Paraguay Green Racer sighting in Brasilia on a given day, based on 5 verified sightings from GBIF citizen-science data. It is the 6th most-seen of the 8 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.
May
In that month about 20% of wildlife watchers report a Paraguay Green Racer in Brasilia on a given day, against under 5% in March and June–December, the lowest months. That is one of Brasilia's driest months, with about 25 mm of rain against 220 mm in December.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Paraguay Green Racer sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Brasilia, in our data
Brasilia is the only city on Wallace's Line with enough records to rate Paraguay Green Racer sightings: about 10% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Paraguay Green Racer is recorded against all the reptiles logged in Brasilia (5 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.
