I'll show you how to successfully catch a swarm because if you keep healthy bees, they will swarm. Bees swarm when one half of the colony leaves with the queen to start a new home. The bees left behind will raise a new queen. Hi, I'm certified master beekeeper David Burns from Long Lane Honey Bee Farms. Check out our complete line of ONLINE Beekeeping Classes at www.honeybeesonline.com or call us at: 217-427-2678