Pollenia vagabunda
In 3 days ~10% in a week ~20%
Pollenia vagabunda is a species of blow fly in the family Polleniidae. It is widespread in Europe and can be found on carrion, although not associated with any specific stages of decomposition. P. vagabunda has also been found in North America, first being discovered there in 1958, with a range from the east coast to British Columbia. Wikipedia →
| # | Park | Country | Daily sighting probability |
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More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Vagabond Cluster Fly sighting in Vancouver on a given day, based on 25 verified sightings from GBIF citizen-science data. It is the 200th most-seen of the 482 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.
February and March
In those months about 10% of wildlife watchers report a Vagabond Cluster Fly in Vancouver on a given day, against under 5% in April to January, the lowest months.
2nd of 6
Of the 6 cities where we can rate Vagabond Cluster Fly sightings, Vancouver ranks 2nd at under 5%. The best odds are in Helsinki (Finland, about 10%).
Same order: Diptera
The closest relatives of the Vagabond Cluster Fly that you can see in Vancouver (order Diptera, Flies) are Black-Margined Flower Fly (about 10%), Common Drone Fly (about 10%) and Common European Greenbottle Fly (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Vagabond Cluster Fly is recorded against all the insects logged in Vancouver (25 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.
