Ninia atrata
Silhouette: Alex Slavenko · PhyloPic
In 3 days ~20% in a week ~40%
Ninia atrata, known commonly as Hallowell's coffee snake, Hallowell's earth snake, the red-nape snake, and the South American coffee snake, is a species of small terrestrial snake in the family Colubridae. The species is native to southern Central America and northern South America.
N. atrata is found in Colombia, Ecuador, Panama, Trinidad and Tobago, and Venezuela. The preferred natural habitats of N. atrata are forest and savanna, at altitudes from sea level to 1,000 m (3,280 ft). N. atrata is believed to feed on insect larvae, termites and slugs.
N. atrata is oviparous. Angarita-Sierra T (2017). "Ninia atrata (Hallowell 1845), Viejita". Catálogo de anfibios y reptiles de Colombia 3 (2): 30–37. (in Spanish). Freiberg M (1982). Snakes of South America. Hong Kong: T.F.H. Publications. 189 pp. ISBN 0-87666-912-7. (Ninia atrata, p. 104).
Hallowell E (1845). "Description of Reptiles from South America, supposed to be new". Proceedings of the Academy of Natural Sciences of Philadelphia 2: 241–247. (Coluber atratus, new species, pp. 245–246). La Marca E, Esqueda LF, Manzanilla J (2004... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Main Ridge Forest Reserve | 🇹🇹 Trinidad and Tobago |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Caracas | 🇻🇪 Venezuela |
With luck
About 10% of wildlife watchers report a Hallowell's Coffee Snake sighting in Caracas on a given day, based on 6 verified sightings from GBIF citizen-science data. It is the 7th most-seen of the 9 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.
January
In that month about 20% of wildlife watchers report a Hallowell's Coffee Snake in Caracas on a given day, against under 5% in February–April, June–August and October–November, the lowest months. That is one of Caracas's driest months, with about 40 mm of rain against 120 mm in August.
Between 7 and 10 pm
Across all the parks we cover, that three-hour window holds the most Hallowell's Coffee Snake sightings with a recorded time, and about half of them come between 6 pm and 6 am: it is seen both by day and at night.
Only Caracas, in our data
Caracas is the only city on Wallace's Line with enough records to rate Hallowell's Coffee Snake sightings: about 10% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Hallowell's Coffee Snake is recorded against all the reptiles logged in Caracas (6 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.
