WHAT TO LOOK FOR
Honey bee swarms usually contain several hundred to several thousand worker bees, a few drones, and one queen. The bees fly around briefly and then cluster on a tree limb, shrub, or other objects.
The swarm usually remains stationary for as little as an hour but up to a few days, depending on the weather and how long it takes scouting bees to find a suitable nest location. When a suitable location for the new colony is found the swarm breaks up and flies to it.
When a honey bee swarm is found on a tree, shrub, or house you do not need to do anything in most situations as the swarms are temporary and the bees will move on if you patiently ignore them. Stay back and keep others away from the swarm until it moves on.
If a health threat is present because of the location of the swarm, such as in a heavily used public area, then you should seek professional help. An experienced beekeeper may be willing to gather the swarm. Please note that swarming honey bees often have diseases and parasites that will be difficult for beekeepers to manage and most beekeepers will not remove honey bee colonies from inside of buildings.
If you notice a swarm of honey bees has made your house’s siding, chimney, or soffits their home, then it is better to hire a pest professional to determine the size of the hive and treat them before they become established and begin to produce honey.