What are the chances of seeing a Chimney-Sweeper in Cairngorms National Park?
Possible
About 20% of wildlife watchers report a Chimney-Sweeper sighting in Cairngorms National Park on a given day, based on 59 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 23rd most-seen of the 300 insects we can rate there. Over three days the chance rises to about 50%, and over a week to about 80%, if each day is a fresh chance.
When is the best time to see a Chimney-Sweeper in Cairngorms National Park?
June
In that month about 40% of wildlife watchers report a Chimney-Sweeper in Cairngorms National Park on a given day, against under 5% in August to April, the lowest months.
What time of day is best to see a Chimney-Sweeper?
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Chimney-Sweeper sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Is Cairngorms National Park the best place to see a Chimney-Sweeper?
Yes
Of the 11 parks where we can rate Chimney-Sweeper sightings, Cairngorms National Park has the highest daily chance: about 20%. Next come Aigüestortes National Park (Spain, about 20%) and Mercantour National Park (France, about 20%).
Which relatives of the Chimney-Sweeper live in Cairngorms National Park?
Same family: Geometridae
The closest relatives of the Chimney-Sweeper that you can see in Cairngorms National Park (family Geometridae, Geometer Moths) are Bordered White (about 20%), Common Heath (about 20%) and July Highflyer Moth (about 20%), with each one's daily chance of a sighting.
Where does the Chimney-Sweeper sighting chance come from?
GBIF citizen-science records
It is estimated from how often the Chimney-Sweeper is recorded against all the insects logged in Cairngorms National Park (59 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.