Speyeria edwardsii
In 3 days ~10% in a week ~20%
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 Calgary on a given day, based on 9 verified sightings from GBIF citizen-science data. It is the 167th most-seen of the 256 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
July
In that month about 10% of wildlife watchers report an Edwards's Fritillary in Calgary on a given day, against under 5% in August to June, 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.
Among the best
Of the 2 cities where we can rate Edwards's Fritillary sightings, Calgary ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Denver (United States, under 5%).
GBIF citizen-science records
It is estimated from how often the Edwards's Fritillary is recorded against all the insects logged in Calgary (9 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.
