Try to determine if they are in fact honey bees. If you are not sure please provide a picture of the swarm when you submit your form.
Honey bee swarms are rarely dangerous.
Swarming is a honey bee colony’s natural means of reproduction. In the process of swarming, a single colony splits into two or more distinct colonies. A swarm of honey bees will typically leave a hive with half of its workers and the mated queen to find a new home. They will land as a group on a tree, house, or any convenient spot with the queen being surrounded by the workers.
Swarming is mainly a spring phenomenon, usually within a two- or three-week period depending on the locale, but occasional swarms can happen throughout the producing season.
Bees swarm for a couple of reasons, but the number one reason is that their living space is too crowded. The queen has run out of room to lay eggs, the honeycomb is being drawn out and filled, the hive is full of nectar and pollen and the air circulation is probably not great.
The hive will then form swarm cells to create another Queen as they’re getting ready to split naturally. Some bees along with the Queen will then decide to leave and find a new less crowded space to occupy, the bees fill up on honey and look for a place to live.