Gryllus campestris
In 3 days ~30% in a week ~60%
Gryllus campestris, the European field cricket or simply the field cricket in the British Isles, is the type species of crickets in its genus and tribe Gryllini. These flightless dark colored insects are comparatively large; the males range from 19 to 23 mm and the females from 17 to 22 mm.
Gryllus campestris used to be common over most of Western Europe. It prefers dry, sunny locations with short vegetation, like dry grasslands. At the northern edge of its range, it is restricted to heathlands and oligotrophic grasslands. The species is flightless and unable to migrate long distances, and it therefore does not commonly recover on its own from local extinction.
The reproductive season of the univoltine species lasts from May to July. The males make a burrow with a platform at the entrance from which they attract females with their courtship stridulation. They chirp during daytime as well as the first part of the night, only when the temperature is well above 13 °C (55 °F).
Nymphs hatch in June till mid July and hibernate during their tenth or eleventh instar. The final moult takes place at the end of April or at the beginning of May. Males are territorial... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Biebrza National Park | 🇵🇱 Poland | |
| 2 | Triglav National Park | 🇸🇮 Slovenia | |
| 3 | Białowieża National Park | 🇵🇱 Poland | |
| 4 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 5 | Cévennes National Park | 🇫🇷 France | |
| 6 | Pyrénées National Park | 🇫🇷 France | |
| 7 | Aigüestortes National Park | 🇪🇸 Spain | |
| 8 | Fertő-Hanság National Park | 🇭🇺 Hungary | |
| 9 | Sierra de Guadarrama National Park | 🇪🇸 Spain |
With luck
About 10% of wildlife watchers report a European Field Cricket sighting in Aigüestortes National Park on a given day, based on 8 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 190th most-seen of the 256 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
September
In that month about 40% of wildlife watchers report a European Field Cricket in Aigüestortes National Park on a given day, against under 5% in May–July and October–March, the lowest months.
Between 2 and 5 pm
Across all the parks we cover, that three-hour window holds the most European Field Cricket sightings with a recorded time, and about 7 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
7th of 9
Of the 9 parks where we can rate European Field Cricket sightings, Aigüestortes National Park ranks 7th at about 10%. The best odds are in Biebrza National Park (Poland, about 30%), Triglav National Park (Slovenia, about 20%) and Białowieża National Park (Poland, about 20%).
Same order: Orthoptera
The closest relatives of the European Field Cricket that you can see in Aigüestortes National Park (order Orthoptera, Grasshoppers, Crickets, and Katydids) are Western Saddle Bush-Cricket (about 40%), Ladder Grasshopper (about 30%) and Wart-Biter (about 30%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the European Field Cricket is recorded against all the insects logged in Aigüestortes National Park (8 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.
