Hipparchia fagi
In 3 days ~10% in a week ~30%
Hipparchia fagi, the woodland grayling, is a butterfly of the family Nymphalidae. The Latin species name fagi, meaning of "beech" (=fagus), refers to the prevailing species of trees in the relating biotope. There are tree subspecies:
It occurs on broad-leaved deciduous forests, coniferous woodland, grassy vegetation, in woodland glades and woodland rides from sea level to 1,500 m–2,000 m elevation. Hipparchia fagi has a wingspan of 66–76 mm (2.6–3.0 in). These large butterflies have dark brown uppersides of the wings, with a fringed margin, a white submarginal band more evident in the females and one black eyelet at the apex of each forewings. In the males the white band has a single very small eyelet on each hindwing, sometimes showing a white pupil, while in the females it shows one or two ocelli.
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| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cévennes National Park | 🇫🇷 France | |
| 2 | Mercantour National Park | 🇫🇷 France | |
| 3 | Pyrénées National Park | 🇫🇷 France |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Budapest | 🇭🇺 Hungary |
Rare
Under 5% of wildlife watchers report a Woodland Grayling sighting in Pyrénées National Park on a given day, based on 15 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 610th most-seen of the 1277 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 and August–September
In those months about 10% of wildlife watchers report a Woodland Grayling in Pyrénées National Park on a given day, against under 5% in July and October–May, the lowest months.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Woodland Grayling sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
3rd of 3
Of the 3 parks where we can rate Woodland Grayling sightings, Pyrénées National Park ranks 3rd at under 5%. The best odds are in Cévennes National Park (France, about 10%) and Mercantour National Park (France, about 10%).
GBIF citizen-science records
It is estimated from how often the Woodland Grayling is recorded against all the insects logged in Pyrénées National Park (15 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.
