Eudonia mercurella
In 3 days ~10% in a week ~20%
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 Vienna on a given day, based on 19 verified sightings from GBIF citizen-science data. It is the 599th most-seen of the 1406 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
July and August
In those months about 10% of wildlife watchers report a Small Grey in Vienna on a given day, against under 5% in September to June, the lowest months. Those are among Vienna's wettest months, with about 85 mm of rain a month against 40 mm in February.
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.
17th of 18
Of the 18 cities where we can rate Small Grey sightings, Vienna ranks 17th at under 5%. The best odds are in Liverpool (United Kingdom, about 20%), London (United Kingdom, about 10%) and Dublin (Ireland, about 10%).
GBIF citizen-science records
It is estimated from how often the Small Grey is recorded against all the insects logged in Vienna (19 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.
