What are the chances of seeing a Spectacled Berry Fly in Wadden Sea National Park?
Rare
Under 5% of wildlife watchers report a Spectacled Berry Fly sighting in Wadden Sea National Park on a given day, based on 11 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 422nd most-seen of the 818 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 Wadden Sea National Park?
July and August
In those months about 10% of wildlife watchers report a Spectacled Berry Fly in Wadden Sea National Park on a given day, against under 5% in September to June, 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.
Where else can you see a Spectacled Berry Fly?
Only Wadden Sea National Park, in our data
Wadden Sea National Park is the only park on Wallace's Line with enough records to rate Spectacled Berry Fly sightings: under 5% of wildlife watchers there report one on a given day.
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 Wadden Sea National Park (11 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.