Eudonia mercurella
In 3 days ~30% in a week ~60%
Eudonia mercurella is a species of moth of the family Crambidae. It is found in Europe, western China, Iran, Lebanon, Turkey, and north-western Africa. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Sierra Nevada National Park | 🇪🇸 Spain | |
| 2 | Cévennes National Park | 🇫🇷 France | |
| 3 | Mercantour National Park | 🇫🇷 France | |
| 4 | Snowdonia National Park | 🇬🇧 United Kingdom | |
| 5 | Pyrénées National Park | 🇫🇷 France | |
| 6 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 7 | Wadden Sea National Park | 🇩🇪 Germany | |
| 8 | Sierra de Guadarrama National Park | 🇪🇸 Spain |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Liverpool | 🇬🇧 United Kingdom | |
| 2 | London | 🇬🇧 United Kingdom | |
| 3 | Dublin | 🇮🇪 Ireland | |
| 4 | Porto | 🇵🇹 Portugal | |
| 5 | Rotterdam [The Hague] | 🇳🇱 Netherlands | |
| 6 | Birmingham | 🇬🇧 United Kingdom | |
| 7 | Munich | 🇩🇪 Germany | |
| 8 | Berlin | 🇩🇪 Germany | |
| 9 | Manchester | 🇬🇧 United Kingdom | |
| 10 | Helsinki | 🇫🇮 Finland |
With luck
About 10% of wildlife watchers report a Small Grey sighting in London on a given day, based on 356 verified sightings from GBIF citizen-science data. It is the 133rd most-seen of the 1504 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
June and July
In those months about 20% of wildlife watchers report a Small Grey in London on a given day, against under 5% in September to April, the lowest months.
Between 10 pm and 1 am
Across all the parks we cover, that three-hour window holds the most Small Grey sightings with a recorded time, and about 7 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
2nd of 18
Of the 18 cities where we can rate Small Grey sightings, London ranks 2nd at about 10%. The best odds are in Liverpool (United Kingdom, about 20%).
Same genus: Eudonia
The closest relatives of the Small Grey that you can see in London (genus Eudonia) are Narrow-Winged Grey (about 10%) and Little Grey (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Small Grey is recorded against all the insects logged in London (356 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.
