Orthosia cerasi
In 3 days ~10% in a week ~30%
The common Quaker (Orthosia cerasi) is a moth of the family Noctuidae first described by Johan Christian Fabricius in 1775. Some authors prefer the synonym Orthosia stabilis (Denis & Schiffermüller, 1775). It is distributed throughout Europe and is also found in Turkey, Palestine (region), Transcaucasia, Russia and eastern Siberia.
This is a variable species, the ground colour of the forewings ranging from greyish to orangey brown, sometimes with a broad dark band. The most distinctive features are two large stigmata, each edged by a narrow pale line, with a similarly coloured subterminal line. The hindwings are drab grey or brown.
The wingspan is 34–40 mm. Forewing reddish grey, more or less dusted with dark: inner and outer lines blackish, indistinct; orbicular and reniform stigmata ringed with ochreous; submarginal line ochreous preceded by a fuscous or rufous shade; claviform mostly unmarked; veins towards termen pale: hindwing grey, the fringe paler. The species varies according to the amount of red present; — ab. pallida Tutt is pale grey, sometimes with an ochreous flush; — obliqua Vill. is darker grey with markings clearer; — suffusa... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Snowdonia National Park | 🇬🇧 United Kingdom | |
| 2 | Cairngorms National Park | 🇬🇧 United Kingdom | |
| 3 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 4 | Sierra de Guadarrama National Park | 🇪🇸 Spain | |
| 5 | Wadden Sea National Park | 🇩🇪 Germany | |
| 6 | Cévennes National Park | 🇫🇷 France | |
| 7 | Pyrénées National Park | 🇫🇷 France |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Liverpool | 🇬🇧 United Kingdom | |
| 2 | Birmingham | 🇬🇧 United Kingdom | |
| 3 | London | 🇬🇧 United Kingdom | |
| 4 | Porto | 🇵🇹 Portugal | |
| 5 | Manchester | 🇬🇧 United Kingdom | |
| 6 | Essen | 🇩🇪 Germany | |
| 7 | Budapest | 🇭🇺 Hungary | |
| 8 | Vienna | 🇦🇹 Austria | |
| 9 | Prague | 🇨🇿 Czechia | |
| 10 | Paris | 🇫🇷 France |
With luck
About 10% of wildlife watchers report a Common Quaker sighting in Paris on a given day, based on 28 verified sightings from GBIF citizen-science data. It is the 269th most-seen of the 916 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.
February to May
In those months about 10% of wildlife watchers report a Common Quaker in Paris on a given day, against under 5% in June to January, the lowest months.
Between 10 pm and 1 am
Across all the parks we cover, that three-hour window holds the most Common Quaker sightings with a recorded time, and about half of them come between 6 pm and 6 am: it is seen both by day and at night.
10th of 18
Of the 18 cities where we can rate Common Quaker sightings, Paris ranks 10th at about 10%. The best odds are in Liverpool (United Kingdom, about 20%), Birmingham (United Kingdom, about 10%) and London (United Kingdom, about 10%).
GBIF citizen-science records
It is estimated from how often the Common Quaker is recorded against all the insects logged in Paris (28 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.
