Coenosia tigrina
In 3 days ~10% in a week ~30%
Coenosia tigrina, the hunter fly, killer fly, or common tiger fly, is a species of fly in the family Muscidae. Like other members of the genus, adults are predators that hunt flying insects, while larvae feed on earthworms. 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 | Liverpool | 🇬🇧 United Kingdom | |
| 2 | Portland | 🇺🇸 United States | |
| 3 | Salt Lake City | 🇺🇸 United States | |
| 4 | Seattle | 🇺🇸 United States | |
| 5 | Boston | 🇺🇸 United States | |
| 6 | Montreal | 🇨🇦 Canada | |
| 7 | London | 🇬🇧 United Kingdom | |
| 8 | New York City | 🇺🇸 United States | |
| 9 | Vancouver | 🇨🇦 Canada | |
| 10 | San Francisco | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Common Tiger Fly sighting in Liverpool on a given day, based on 6 verified sightings from GBIF citizen-science data. It is the 592nd most-seen of the 632 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
July–August and October
In those months about 10% of wildlife watchers report a Common Tiger Fly in Liverpool on a given day, against under 5% in September and November–June, the lowest months.
Yes
Of the 12 cities where we can rate Common Tiger Fly sightings, Liverpool has the highest daily chance: under 5%. Next come Portland (United States, under 5%) and Salt Lake City (United States, under 5%).
GBIF citizen-science records
It is estimated from how often the Common Tiger Fly is recorded against all the insects logged in Liverpool (6 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.
