Common Eastern Bumble Bee
Bombus impatiens

Bombus impatiens, the common eastern bumblebee, is the most commonly encountered bumblebee across much of eastern North America. They can be found in the Eastern temperate forest region of the eastern United States, southern Canada, and the eastern Great Plains. They are adapted to suburban and urban environments, and as a pollinator species in commercial use by the greenhouse industry. This increase consequently led to their farther spread outside their previous distribution range. They are considered one of the most important species of pollinator bees in North America. Source
Where it is now
In the last 8 weeks this insect was recorded 894 times across 21 areas (each area is a 5 degree square).
See the Common Eastern Bumble Bee on the live map
Arrival dates
The week it was first heard regularly in each region, after at least six weeks away. Dates differ from south to north, so a region has a range.
| Region | First arrival | Last arrival | Typical peak | Areas |
|---|---|---|---|---|
| North America | 7 September 2026 | 7 September 2026 | 7 September 2026 | 2 |
Figures are effort corrected and come from automatic sound identification, which makes mistakes. How this is measured and how it compares with human observers.