What are the chances of seeing a Coenonympha haydeni in Yellowstone National Park?
With luck
About 10% of wildlife watchers report a Coenonympha haydeni sighting in Yellowstone National Park on a given day, based on 72 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 15th most-seen of the 160 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.
When is the best time to see a Coenonympha haydeni in Yellowstone National Park?
June and July
In those months about 20% of wildlife watchers report a Coenonympha haydeni in Yellowstone National Park on a given day, against under 5% in September to May, the lowest months.
What time of day is best to see a Coenonympha haydeni?
Between noon and 3 pm
Across all the parks we cover, that three-hour window holds the most Coenonympha haydeni 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 Yellowstone National Park the best place to see a Coenonympha haydeni?
Yes
Of the 2 parks where we can rate Coenonympha haydeni sightings, Yellowstone National Park has the highest daily chance: about 10%. Next come Grand Teton National Park (United States, about 10%).
Where does the Coenonympha haydeni sighting chance come from?
GBIF citizen-science records
It is estimated from how often the Coenonympha haydeni is recorded against all the insects logged in Yellowstone National Park (72 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.