Eudonia mercurella
In 3 days ~30% in a week ~50%
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 Pyrénées National Park on a given day, based on 81 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 161st most-seen of the 1277 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 50%, if each day is a fresh chance.
July and August
In those months about 20% of wildlife watchers report a Small Grey in Pyrénées National Park on a given day, against under 5% in September and November–May, 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.
Among the best
Of the 8 parks where we can rate Small Grey sightings, Pyrénées National Park ranks 5th at about 10%, level with the leaders once rounded. The best odds are in Sierra Nevada National Park (Spain, about 10%), Cévennes National Park (France, about 10%) and Mercantour National Park (France, about 10%).
Same genus: Eudonia
The closest relatives of the Small Grey that you can see in Pyrénées National Park (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 Pyrénées National Park (81 verified sightings from 2019 to 2026), 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.
