Psammophis crucifer
Silhouette: SeismicShrimp · PhyloPic
In 3 days ~20% in a week ~40%
Psammophis crucifer, the cross-marked grass snake or the cross-marked sand snake and Montane grass snake, is a species of mildly venomous snake belonging to the genus Psammophis. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | De Hoop Nature Reserve | 🇿🇦 South Africa | |
| 2 | West Coast National Park | 🇿🇦 South Africa | |
| 3 | Table Mountain National Park | 🇿🇦 South Africa | |
| 4 | Garden Route National Park | 🇿🇦 South Africa |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cape Town | 🇿🇦 South Africa |
With luck
About 10% of wildlife watchers report a Cross-marked Grass Snake sighting in Cape Town on a given day, based on 38 verified sightings from GBIF citizen-science data. It is the 19th most-seen of the 35 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, May–July and September–November
In those months about 10% of wildlife watchers report a Cross-marked Grass Snake in Cape Town on a given day, against under 5% in April, August and December–February, the lowest months.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Cross-marked Grass Snake sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Only Cape Town, in our data
Cape Town is the only city on Wallace's Line with enough records to rate Cross-marked Grass 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 Cross-marked Grass Snake is recorded against all the reptiles logged in Cape Town (38 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.
