What are the chances of seeing a Cerura iberica in Lisbon?
Rare
Under 5% of wildlife watchers report a Cerura iberica sighting in Lisbon on a given day, based on 7 verified sightings from GBIF citizen-science data. It is the 324th most-seen of the 441 insects 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 Cerura iberica in Lisbon?
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Cerura iberica in Lisbon on a given day, so our monthly data shows no clear season.
Is Lisbon the best place to see a Cerura iberica?
Among the best
Of the 3 cities where we can rate Cerura iberica sightings, Lisbon ranks 3rd at under 5%, level with the leaders once rounded. The best odds are in Madrid (Spain, under 5%) and Porto (Portugal, under 5%).
Where does the Cerura iberica sighting chance come from?
GBIF citizen-science records
It is estimated from how often the Cerura iberica is recorded against all the insects logged in Lisbon (7 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.