Eudonia mercurella
In 3 days ~10% in a week ~30%
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 |
Rare
Under 5% of wildlife watchers report a Small Grey sighting in Sierra de Guadarrama National Park on a given day, based on 9 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 354th most-seen of the 597 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.
June–July and September
In those months about 10% of wildlife watchers report a Small Grey in Sierra de Guadarrama National Park on a given day, against under 5% in August and October–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.
8th of 8
Of the 8 parks where we can rate Small Grey sightings, Sierra de Guadarrama National Park ranks 8th at under 5%. 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 Sierra de Guadarrama National Park (genus Eudonia) are Narrow-Winged Grey (about 10%) and Pied 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 Sierra de Guadarrama National Park (9 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.
