What are the chances of seeing a Barred Arches in Pretoria?
Rare
Under 5% of wildlife watchers report a Barred Arches sighting in Pretoria on a given day, based on 5 verified sightings from GBIF citizen-science data. It is the 225th most-seen of the 274 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
When is the best time to see a Barred Arches in Pretoria?
April, August–October and December
In those months about 10% of wildlife watchers report a Barred Arches in Pretoria on a given day, against under 5% in January–March, May–July and November, the lowest months.
Where else can you see a Barred Arches?
Only Pretoria, in our data
Pretoria is the only city on Wallace's Line with enough records to rate Barred Arches sightings: under 5% of wildlife watchers there report one on a given day.
Where does the Barred Arches sighting chance come from?
GBIF citizen-science records
It is estimated from how often the Barred Arches is recorded against all the insects logged in Pretoria (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.