What are the chances of seeing a Cerura iberica in Madrid?
Rare
Under 5% of wildlife watchers report a Cerura iberica sighting in Madrid on a given day, based on 12 verified sightings from GBIF citizen-science data. It is the 251st most-seen of the 457 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 Cerura iberica in Madrid?
April and May
In those months about 10% of wildlife watchers report a Cerura iberica in Madrid on a given day, against under 5% in June to March, the lowest months.
Is Madrid the best place to see a Cerura iberica?
Yes
Of the 3 cities where we can rate Cerura iberica sightings, Madrid has the highest daily chance: under 5%. Next come Porto (Portugal, under 5%) and Lisbon (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 Madrid (12 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.