Bombus mixtus
In 3 days ~30% in a week ~60%
Bombus mixtus is a species of bumblebee. It is native to western North America, where it occurs in western Canada and the United States. It is also disjunct in the Great Lakes region. It is known commonly as the fuzzy-horned bumblebee, tricoloured bumblebee, orange-belted bumblebee, and mixed bumblebee.
This bee lives in mountain habitat, and taiga and tundra habitat in northern areas. It lives in open, grassy habitat, chaparral, shrublands, and meadows. It feeds at the flowers of ceanothus, fireweed, coyote mints, penstemons, phacelias, rhododendrons, and groundsels. It nests underground or on the surface.
NatureServe. 2015. Bombus mixtus. NatureServe Explorer Version 7.1. Accessed 8 March 2016. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Wrangell-St. Elias National Park | 🇺🇸 United States | |
| 2 | Pacific Rim National Park Reserve | 🇨🇦 Canada | |
| 3 | Kluane National Park | 🇨🇦 Canada | |
| 4 | Denali National Park | 🇺🇸 United States | |
| 5 | Glacier National Park | 🇺🇸 United States | |
| 6 | Olympic National Park | 🇺🇸 United States | |
| 7 | Great Bear Rainforest | 🇨🇦 Canada | |
| 8 | Grand Teton National Park | 🇺🇸 United States | |
| 9 | Banff National Park | 🇨🇦 Canada | |
| 10 | Yellowstone National Park | 🇺🇸 United States | |
| 11 | Rocky Mountain National Park | 🇺🇸 United States | |
| 12 | Jasper National Park | 🇨🇦 Canada |
With luck
About 10% of wildlife watchers report a Fuzzy-Horned Bumble Bee sighting in Portland on a given day, based on 216 verified sightings from GBIF citizen-science data. It is the 31st most-seen of the 507 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
May and June
In those months about 20% of wildlife watchers report a Fuzzy-Horned Bumble Bee in Portland on a given day, against under 5% in August to February, the lowest months. Those are among Portland's driest months, with about 65 mm of rain a month against 250 mm in December.
Between 1 and 4 pm
Across all the parks we cover, that three-hour window holds the most Fuzzy-Horned 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.
3rd of 4
Of the 4 cities where we can rate Fuzzy-Horned Bumble Bee sightings, Portland ranks 3rd at about 10%. The best odds are in Seattle (United States, about 20%) and Vancouver (Canada, about 20%).
Same genus: Bombus
The closest relatives of the Fuzzy-Horned 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 California Bumble Bee (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Fuzzy-Horned Bumble Bee is recorded against all the insects logged in Portland (216 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.
