A swarm of honey bees is a natural phenomenon. It is the way of multiplying their populations ensuring survival.
Swarms start as a cloud of thousands of bees and can land on almost anything to rest. A swarm can be the size of a golf ball but can be much larger. Before they swarm they gorge themselves on honey and are generally docile. Honey bees don't generally sting unless provoked. They do not have resources to defend other than the queen. Although the swarm may look scary, try to just watch nature at work.
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