Zeiraphera isertana
In 3 days ~10% in a week ~20%
Zeiraphera isertana is a moth of the family Tortricidae. It is found in China (Liaoning, Gansu, Qinghai), Russia, Europe and the Near East. The wingspan is 13–18 mm. The moth flies from July to August in western Europe. The larvae feed on the leaves of Quercus, Pyrus and Ulmus species. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Wadden Sea National Park | 🇩🇪 Germany |
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Cock's-Head Bell sighting in London on a given day, based on 8 verified sightings from GBIF citizen-science data. It is the 1153rd most-seen of the 1504 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 Cock's-Head Bell in London on a given day, so our monthly data shows no clear season.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Cock's-Head Bell sightings with a recorded time, and about 6 in 10 of them come between 6 pm and 6 am: it is seen both by day and at night.
Among the best
Of the 3 cities where we can rate Cock's-Head Bell sightings, London ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Paris (France, under 5%).
Same family: Tortricidae
The closest relatives of the Cock's-Head Bell that you can see in London (family Tortricidae, Tortricid Leafroller Moths) are Light Brown Apple Moth (about 20%), Common Marble (about 10%) and Clepsis dumicolana (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Cock's-Head Bell is recorded against all the insects logged in London (8 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.
