These bees are away from the colony and are not likely to sting because they have nothing to defend. In general, if you leave them alone they will leave you alone. To prevent foraging bees from gathering in or around your home, remove or prevent access to any sources of food or water that may attract them. This will include any items that provide a source of sugar or water such as flowers, ripening fruit, soda cans and water dishes. People wearing brightly colored clothing and perfume or aftershave lotion may also attract foraging bees because the bees search for flowers is triggered by bright colors and sweet smells.
Honey bees swarm as part of the colony s reproductive process.
A honey bee queen is not able to survive on her own or start a new colony alone. When an existing colony prepares to swarm, the bees produce anew queen. Then the old queen and about half of the worker bees will leave the parent colony to establish a new colony. It is this group of bees we call a swarm. Although a swarm appears quite dangerous, honey bees are usually extremely gentle when swarming.