Ancylis badiana
In 3 days ~10% in a week ~20%
Ancylis badiana is a moth of the family Tortricidae. It is found in the Palearctic realm. The wingspan is 12–16 mm.16–20 mm. The moth flies from late April to June and again from July to September in two generations, although this might be dependent on the location.
The larvae feed on Trifolium, Vicia, Lathyrus and Lythrum salicaria. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Birmingham | 🇬🇧 United Kingdom | |
| 2 | Manchester | 🇬🇧 United Kingdom | |
| 3 | Liverpool | 🇬🇧 United Kingdom | |
| 4 | Nizhny Novgorod | 🇷🇺 Russia | |
| 5 | Helsinki | 🇫🇮 Finland | |
| 6 | Saint Petersburg | 🇷🇺 Russia | |
| 7 | Moscow | 🇷🇺 Russia |
Rare
Under 5% of wildlife watchers report a Common Roller sighting in Helsinki on a given day, based on 5 verified sightings from GBIF citizen-science data. It is the 732nd most-seen of the 838 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 Common Roller in Helsinki on a given day, so our monthly data shows no clear season.
5th of 7
Of the 7 cities where we can rate Common Roller sightings, Helsinki ranks 5th at under 5%. The best odds are in Birmingham (United Kingdom, about 10%), Manchester (United Kingdom, about 10%) and Liverpool (United Kingdom, about 10%).
Same family: Tortricidae
The closest relatives of the Common Roller that you can see in Helsinki (family Tortricidae, Tortricid Leafroller Moths) are Barred Marble (about 10%), Common Marble (about 10%) and White-Foot Bell (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Common Roller is recorded against all the insects logged in Helsinki (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.
