Photinus corrusca
In 3 days ~30% in a week ~60%
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Acadia National Park | 🇺🇸 United States | |
| 2 | Great Smoky Mountains National Park | 🇺🇸 United States | |
| 3 | Cape Breton Highlands National Park | 🇨🇦 Canada | |
| 4 | Shenandoah National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Boston | 🇺🇸 United States | |
| 2 | Montreal | 🇨🇦 Canada | |
| 3 | New York City | 🇺🇸 United States | |
| 4 | Toronto | 🇨🇦 Canada | |
| 5 | Vancouver | 🇨🇦 Canada | |
| 6 | Washington | 🇺🇸 United States | |
| 7 | Philadelphia | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Winter Firefly sighting in Cape Breton Highlands National Park on a given day, based on 8 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 43rd most-seen of the 68 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
July–August and October
In those months about 20% of wildlife watchers report a Winter Firefly in Cape Breton Highlands National Park on a given day, against under 5% in September and November–May, the lowest months.
Between noon and 3 pm
Across all the parks we cover, that three-hour window holds the most Winter Firefly sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
3rd of 4
Of the 4 parks where we can rate Winter Firefly sightings, Cape Breton Highlands National Park ranks 3rd at about 10%. The best odds are in Acadia National Park (United States, about 20%) and Great Smoky Mountains National Park (United States, about 10%).
GBIF citizen-science records
It is estimated from how often the Winter Firefly is recorded against all the insects logged in Cape Breton Highlands National Park (8 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.
