Erythemis collocata
In 3 days ~10% in a week ~20%
Erythemis collocata, the western pondhawk, is a dragonfly of the family Libellulidae, native to western Canada, the western United States, and Mexico. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Death Valley National Park | 🇺🇸 United States | |
| 2 | Yellowstone National Park | 🇺🇸 United States | |
| 3 | Redwood National Park | 🇺🇸 United States | |
| 4 | Saguaro National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Portland | 🇺🇸 United States | |
| 2 | Las Vegas | 🇺🇸 United States | |
| 3 | Seattle | 🇺🇸 United States | |
| 4 | Phoenix | 🇺🇸 United States | |
| 5 | Sacramento | 🇺🇸 United States | |
| 6 | Denver | 🇺🇸 United States | |
| 7 | Vancouver | 🇨🇦 Canada | |
| 8 | Mesa | 🇺🇸 United States | |
| 9 | Salt Lake City | 🇺🇸 United States | |
| 10 | San Diego | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Western Pondhawk sighting in San Francisco on a given day, based on 25 verified sightings from GBIF citizen-science data. It is the 313th most-seen of the 737 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.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Western Pondhawk in San Francisco on a given day, so our monthly data shows no clear season.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Western Pondhawk sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
11th of 12
Of the 12 cities where we can rate Western Pondhawk sightings, San Francisco ranks 11th at under 5%. The best odds are in Portland (United States, about 10%), Las Vegas (United States, about 10%) and Seattle (United States, about 10%).
Same family: Libellulidae
The closest relatives of the Western Pondhawk that you can see in San Francisco (family Libellulidae, Skimmers) are Flame Skimmer (about 10%) and Variegated Meadowhawk (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Western Pondhawk is recorded against all the insects logged in San Francisco (25 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.
