What are the chances of seeing a Black-Horned Gem Fly in Birmingham?
With luck
About 10% of wildlife watchers report a Black-Horned Gem Fly sighting in Birmingham on a given day, based on 24 verified sightings from GBIF citizen-science data. It is the 289th 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.
When is the best time to see a Black-Horned Gem Fly in Birmingham?
April to August
In those months about 10% of wildlife watchers report a Black-Horned Gem Fly in Birmingham on a given day, against under 5% in September to March, the lowest months.
Is Birmingham the best place to see a Black-Horned Gem Fly?
Yes
Of the 17 cities where we can rate Black-Horned Gem Fly sightings, Birmingham has the highest daily chance: about 10%. Next come Brussels (Belgium, about 10%) and Liverpool (United Kingdom, about 10%).
Which relatives of the Black-Horned Gem Fly live in Birmingham?
Same family: Stratiomyidae
The closest relatives of the Black-Horned Gem Fly that you can see in Birmingham (family Stratiomyidae, Soldier Flies) are Broad Centurion Fly (about 10%), Twin-Spot Centurion Fly (about 10%) and Murky-Legged Black Legionnaire (about 10%), with each one's daily chance of a sighting.
Where does the Black-Horned Gem Fly sighting chance come from?
GBIF citizen-science records
It is estimated from how often the Black-Horned Gem Fly is recorded against all the insects logged in Birmingham (24 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.