Do bumblebees swarm?
No, bumblebees don’t form swarms.
If you see hundreds or thousands of bees flying close together or tightly packed on a surface, these will be honeybees. Please seek advice from a local beekeeper.
If you have a Tree bumblebee nest nearby, you might see 10 to 20 bumblebees flying in a little dancing cloud outside a nest entrance, especially if it’s in a bird box or somewhere else above ground. These are male bees who are waiting for new queens to emerge so that they can mate with them. Male bumblebees cannot sting, and they pose no risk to you at all.
