Silhouette: PhyloPic
Cheilosia morio
In 3 days ~20% in a week ~40%
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cairngorms National Park | 🇬🇧 United Kingdom | |
| 2 | Snowdonia National Park | 🇬🇧 United Kingdom | |
| 3 | Cévennes National Park | 🇫🇷 France | |
| 4 | Wadden Sea National Park | 🇩🇪 Germany | |
| 5 | Pyrénées National Park | 🇫🇷 France |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Amsterdam | 🇳🇱 Netherlands | |
| 2 | Rotterdam [The Hague] | 🇳🇱 Netherlands | |
| 3 | Manchester | 🇬🇧 United Kingdom | |
| 4 | London | 🇬🇧 United Kingdom | |
| 5 | Birmingham | 🇬🇧 United Kingdom | |
| 6 | Moscow | 🇷🇺 Russia |
With luck
About 10% of wildlife watchers report a Cheilosia morio sighting in Snowdonia National Park on a given day, based on 5 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 336th most-seen of the 387 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.
May and July–August
In those months about 10% of wildlife watchers report a Cheilosia morio in Snowdonia National Park on a given day, against under 5% in June and September–April, the lowest months.
Between 1 and 4 pm
Across all the parks we cover, that three-hour window holds the most Cheilosia morio sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 5 parks where we can rate Cheilosia morio sightings, Snowdonia National Park ranks 2nd at about 10%, level with the leaders once rounded. The best odds are in Cairngorms National Park (United Kingdom, about 10%).
Same family: Syrphidae
The closest relatives of the Cheilosia morio that you can see in Snowdonia National Park (family Syrphidae, Hover Flies) are Tapered Drone Fly (about 20%), Marmalade Hover Fly (about 20%) and Common Drone Fly (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Cheilosia morio is recorded against all the insects logged in Snowdonia National Park (5 verified sightings from 2019 to 2026), 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.
