What are the chances of seeing a Spectacled Berry Fly in Rotterdam [The Hague]?
With luck
About 10% of wildlife watchers report a Spectacled Berry Fly sighting in Rotterdam [The Hague] on a given day, based on 8 verified sightings from GBIF citizen-science data. It is the 213th most-seen of the 355 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.
When is the best time to see a Spectacled Berry Fly in Rotterdam [The Hague]?
June to August
In those months about 10% of wildlife watchers report a Spectacled Berry Fly in Rotterdam [The Hague] on a given day, against under 5% in September to May, the lowest months.
What time of day is best to see a Spectacled Berry Fly?
Between midnight and 3 am
Across all the parks we cover, that three-hour window holds the most Spectacled Berry Fly sightings with a recorded time, and about 8 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
Is Rotterdam [The Hague] the best place to see a Spectacled Berry Fly?
Yes
Of the 7 cities where we can rate Spectacled Berry Fly sightings, Rotterdam [The Hague] has the highest daily chance: about 10%. Next come Manchester (United Kingdom, under 5%) and Hamburg (Germany, under 5%).
Where does the Spectacled Berry Fly sighting chance come from?
GBIF citizen-science records
It is estimated from how often the Spectacled Berry Fly is recorded against all the insects logged in Rotterdam [The Hague] (8 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.