Bombus nevadensis
In 3 days ~10% in a week ~30%
Bombus nevadensis, the Nevada bumblebee, is a species of bumblebee. It is native to North America, where it occurs from Alaska to California in the west, and east to Wisconsin, and in Arizona, New Mexico, and Mexico. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Riding Mountain National Park | 🇨🇦 Canada | |
| 2 | Grand Teton National Park | 🇺🇸 United States | |
| 3 | Rocky Mountain National Park | 🇺🇸 United States | |
| 4 | Yellowstone National Park | 🇺🇸 United States | |
| 5 | Grand Canyon National Park | 🇺🇸 United States | |
| 6 | Jasper National Park | 🇨🇦 Canada |
With luck
About 10% of wildlife watchers report a Nevada Bumble Bee sighting in Portland on a given day, based on 39 verified sightings from GBIF citizen-science data. It is the 149th most-seen of the 507 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.
June to August
In those months about 10% of wildlife watchers report a Nevada Bumble Bee in Portland on a given day, against under 5% in September to May, the lowest months. Those are among Portland's driest months, with about 30 mm of rain a month against 250 mm in December.
Between noon and 3 pm
Across all the parks we cover, that three-hour window holds the most Nevada Bumble Bee sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
5th of 6
Of the 6 cities where we can rate Nevada Bumble Bee sightings, Portland ranks 5th at about 10%. The best odds are in Calgary (Canada, about 20%), Edmonton (Canada, about 10%) and Denver (United States, about 10%).
Same genus: Bombus
The closest relatives of the Nevada Bumble Bee that you can see in Portland (genus Bombus, Bumble Bees) are Black-Tailed Bumble Bee (about 20%), Yellow-Faced Bumble Bee (about 20%) and Fuzzy-Horned Bumble Bee (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Nevada Bumble Bee is recorded against all the insects logged in Portland (39 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.
