Bees and beekeepers
Some ways gardeners can help protect honey bees: An article by Dr. Eric Mussen, UC Cooperative Extension Apiculturist
If honeybees establish a beehive or you see a large number of bees swarming somewhere on your property, you may want to read about Removing Honey Bee Swarms and Established Hives.
If they don’t leave after a few days, or if they have taken up residence inside a structure, you will probably want to contact a beekeeper for bee removal services. Bee removal services to homeowners and commercial sites are part of a beekeeper’s business, so you should expect to pay a fee to have a swarm removed. Do give the bees every chance, since bees are an important resource and shouldn’t be needlessly exterminated.
The Bee Guys