Ophiogomphus severus
In 3 days ~20% in a week ~50%
Ophiogomphus severus is a species of dragonfly in the family Gomphidae. It is commonly known as the pale snaketail. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Grand Teton National Park | 🇺🇸 United States | |
| 2 | Yellowstone National Park | 🇺🇸 United States | |
| 3 | Glacier National Park | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Pale Snaketail sighting in Calgary on a given day, based on 96 verified sightings from GBIF citizen-science data. It is the 31st most-seen of the 256 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 50%, if each day is a fresh chance.
August
In that month about 20% of wildlife watchers report a Pale Snaketail in Calgary on a given day, against under 5% in October to May, the lowest months.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Pale Snaketail sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 3 cities where we can rate Pale Snaketail sightings, Calgary has the highest daily chance: about 10%. Next come Edmonton (Canada, about 10%) and Denver (United States, about 10%).
Same order: Odonata
The closest relatives of the Pale Snaketail that you can see in Calgary (order Odonata, Dragonflies and Damselflies) are Black Meadowhawk (about 10%), Variegated Meadowhawk (about 10%) and Variable Darner (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Pale Snaketail is recorded against all the insects logged in Calgary (96 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.
