Bibio johannis
In 3 days ~10% in a week ~20%
Bibio johannis is a species of fly in the family Bibionidae. It is found in the Palearctic. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Helsinki | 🇫🇮 Finland | |
| 2 | Birmingham | 🇬🇧 United Kingdom |
Rare
Under 5% of wildlife watchers report a Black Gnat sighting in Birmingham on a given day, based on 5 verified sightings from GBIF citizen-science data. It is the 745th most-seen of the 811 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.
April
In that month about 10% of wildlife watchers report a Black Gnat in Birmingham on a given day, against under 5% in May to March, the lowest months.
Among the best
Of the 2 cities where we can rate Black Gnat sightings, Birmingham ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Helsinki (Finland, under 5%).
GBIF citizen-science records
It is estimated from how often the Black Gnat is recorded against all the insects logged in Birmingham (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.
