What are the chances of seeing a Crowned Graceful Brown Snake in Mexico City?
Rare
Under 5% of wildlife watchers report a Crowned Graceful Brown Snake sighting in Mexico City on a given day, based on 17 verified sightings from GBIF citizen-science data. It is the 28th most-seen of the 37 reptiles we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
When is the best time to see a Crowned Graceful Brown Snake in Mexico City?
June, August and November
In those months about 10% of wildlife watchers report a Crowned Graceful Brown Snake in Mexico City on a given day, against under 5% in July, September–October and December–May, the lowest months. Those are among Mexico City's wettest months, with about 100 mm of rain a month against 5 mm in December.
Where else can you see a Crowned Graceful Brown Snake?
Only Mexico City, in our data
Mexico City is the only city on Wallace's Line with enough records to rate Crowned Graceful Brown Snake sightings: under 5% of wildlife watchers there report one on a given day.
Which relatives of the Crowned Graceful Brown Snake live in Mexico City?
Same family: Colubridae
The closest relatives of the Crowned Graceful Brown Snake that you can see in Mexico City (family Colubridae, Colubrid Snakes) are Lined Tolucan Ground Snake (about 20%), Mexican Bull Snake (about 20%) and Blackbelly Garter Snake (about 10%), with each one's daily chance of a sighting.
Where does the Crowned Graceful Brown Snake sighting chance come from?
GBIF citizen-science records
It is estimated from how often the Crowned Graceful Brown Snake is recorded against all the reptiles logged in Mexico City (17 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.