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 Vienna on a given day, based on 5 verified sightings from GBIF citizen-science data. It is the 1286th 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.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Feathered Bright in Vienna on a given day, so our monthly data shows no clear season.
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 6 cities where we can rate Feathered Bright sightings, Vienna ranks 6th at under 5%, level with the leaders once rounded. The best odds are in Rotterdam [The Hague] (Netherlands, under 5%), London (United Kingdom, under 5%) and Prague (Czechia, under 5%).
Same order: Lepidoptera
The closest relatives of the Feathered Bright that you can see in Vienna (order Lepidoptera, Butterflies and Moths) are Common Blue (about 20%), Scarce Swallowtail (about 20%) and Meadow Brown (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 Vienna (5 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.
