Incurvaria masculella
In 3 days ~10% in a week ~20%
Incurvaria masculella, the feathered leaf-cutter, is a moth of the family Incurvariidae. It is widespread in Europe. The wingspan is 12–16 mm. Head pale ochreous, ferruginous-tinged. Forewings rather dark purplish bronzy-fuscous; a whitish triangular dorsal spot before middle, and a smaller one before tornus. Hindwings rather dark grey.
In Belgium, the moth flies from April to May; in May in the British Isles. The larvae feed on Crataegus and various deciduous trees and bushes, including roses, Malus domestica, Prunus mahaleb, oak, sweet chestnut, Corylus avellana, Tilia, Carpinus betulus, and Vaccinium. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 2 | Wadden Sea National Park | 🇩🇪 Germany |
Rare
Under 5% of wildlife watchers report a Feathered Bright sighting in Wadden Sea National Park on a given day, based on 5 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 699th most-seen of the 818 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.
April and May
In those months about 10% of wildlife watchers report a Feathered Bright in Wadden Sea National Park on a given day, against under 5% in June to March, the lowest months. Those are among Wadden Sea National Park's driest months, with about 45 mm of rain a month against 140 mm in November.
Between 6 and 9 am
Across all the parks we cover, that three-hour window holds the most Feathered Bright sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 2 parks where we can rate Feathered Bright sightings, Wadden Sea National Park ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Bavarian Forest National Park (Germany, under 5%).
Same order: Lepidoptera
The closest relatives of the Feathered Bright that you can see in Wadden Sea National Park (order Lepidoptera, Butterflies and Moths) are Red Admiral (about 30%), Large Yellow Underwing (about 20%) and Small Copper (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Feathered Bright is recorded against all the insects logged in Wadden Sea National Park (5 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.
