Speyeria edwardsii
In 3 days ~10% in a week ~30%
Speyeria edwardsii, the Edwards' fritillary, is a butterfly of the family Nymphalidae of North America. It is common from Alberta east to Manitoba and south as far as northern New Mexico. This butterfly is mostly orange coloured with distinct dark-brown bars on the topside. The wing margins are dark with lighter circles then darker crescents. Silvery spots predominate on the yellowish underside.
Wingspan ranges from 60–86 mm (2.4–3.4 in). Larva feeds on Viola nuttallii. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Rocky Mountain National Park | 🇺🇸 United States |
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report an Edwards's Fritillary sighting in Denver on a given day, based on 21 verified sightings from GBIF citizen-science data. It is the 185th most-seen of the 461 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.
May–June and September
In those months about 10% of wildlife watchers report an Edwards's Fritillary in Denver on a given day, against under 5% in July–August and October–April, the lowest months.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Edwards's Fritillary sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 2 cities where we can rate Edwards's Fritillary sightings, Denver has the highest daily chance: under 5%. Next come Calgary (Canada, under 5%).
GBIF citizen-science records
It is estimated from how often the Edwards's Fritillary is recorded against all the insects logged in Denver (21 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.
