Ancylis badiana
In 3 days ~20% in a week ~40%
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 |
With luck
About 10% of wildlife watchers report a Common Roller sighting in Birmingham on a given day, based on 28 verified sightings from GBIF citizen-science data. It is the 285th most-seen of the 811 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
April–May and July–August
In those months about 10% of wildlife watchers report a Common Roller in Birmingham on a given day, against under 5% in June and September–March, the lowest months.
Yes
Of the 7 cities where we can rate Common Roller sightings, Birmingham has the highest daily chance: about 10%. Next come Manchester (United Kingdom, about 10%) and Liverpool (United Kingdom, about 10%).
GBIF citizen-science records
It is estimated from how often the Common Roller is recorded against all the insects logged in Birmingham (28 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.
