What are the chances of seeing a Prong-Faced Slender-Mason in San Francisco?
Rare
Under 5% of wildlife watchers report a Prong-Faced Slender-Mason sighting in San Francisco on a given day, based on 8 verified sightings from GBIF citizen-science data. It is the 550th most-seen of the 737 insects we can rate there. Over three days the chance rises to about 10%, if each day is a fresh chance.
When is the best time to see a Prong-Faced Slender-Mason in San Francisco?
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Prong-Faced Slender-Mason in San Francisco on a given day, so our monthly data shows no clear season.
Is San Francisco the best place to see a Prong-Faced Slender-Mason?
Among the best
Of the 3 cities where we can rate Prong-Faced Slender-Mason sightings, San Francisco ranks 3rd at under 5%, level with the leaders once rounded. The best odds are in Sacramento (United States, under 5%) and Portland (United States, under 5%).
Where does the Prong-Faced Slender-Mason sighting chance come from?
GBIF citizen-science records
It is estimated from how often the Prong-Faced Slender-Mason is recorded against all the insects logged in San Francisco (8 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.