What are the chances of seeing a Svensson's Copper Underwing in London?
Rare
Under 5% of wildlife watchers report a Svensson's Copper Underwing sighting in London on a given day, based on 30 verified sightings from GBIF citizen-science data. It is the 644th most-seen of the 1504 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 Svensson's Copper Underwing in London?
July and August
In those months about 10% of wildlife watchers report a Svensson's Copper Underwing in London on a given day, against under 5% in September to June, the lowest months.
Is London the best place to see a Svensson's Copper Underwing?
7th of 11
Of the 11 cities where we can rate Svensson's Copper Underwing sightings, London ranks 7th at under 5%. The best odds are in Budapest (Hungary, about 10%), Vienna (Austria, about 10%) and Prague (Czechia, under 5%).
Where does the Svensson's Copper Underwing sighting chance come from?
GBIF citizen-science records
It is estimated from how often the Svensson's Copper Underwing is recorded against all the insects logged in London (30 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.