Healthy honey bee colonies in the spring reproduce themselves by swarming. As the colony builds up in the spring, the workers start filling the hive with nectar. As they fill all the comb, the queen runs out of space to lay eggs. Since she is no longer laying a large amount of eggs she begins to shrink down so she can fly. Once the weather is warm and sunny for a few days, the queen has shrunk down and can fly, the colony begins to raise a new queen. Soon after that a large amount of workers, about half, and the queen leave the hive to start a new hive. This is a swarm. After leaving the hive, they land close by at a staging area. They will congregate on a tree, fence, house or even just on the ground. Here they will wait. This is were you will most likely see them. They have all gorged themselves on honey and are fat and happy. They send out scouts to find a new place to call home. They may sit here for a few hours or a few days until they can decide where to move. During this time, they are not likely to sting or take any interest in what is going on around them. If you just leave them they will leave. If they make you nervous or you would like to give them a good home, give me a call at 740.709.6351 and I will come and give them a home. I do not charge for removing a swarm. Above all do not spray them. Swarms are a precious resource.