The answer to 'why is my bee swarms' is that bee swarms are a natural part of the bee colony's life cycle. Bees will swarm when the colony becomes overcrowded, and the queen bee leaves with a large group of worker bees to establish a new hive. Swarming typically occurs in the spring and early summer when bee populations are at their highest.
Bee swarms are not usually aggressive, as the bees are focused on finding a new home and are not defending a nest. However, a large swarm can be alarming to homeowners. The best solution is to leave the swarm alone and allow it to move on to a new location on its own. If the swarm settles on your property and you need assistance, it's best to call a professional beekeeper or pest control expert to safely remove the swarm.