The swarms are honeybees looking for a new home, said local beekeeper Bridgette Stewart and will avoid human contact unless harassed. But in the last week, Stewart said she has heard of several people calling exterminators to eliminate the bees.

Instead, she said, people should contact a beekeeper or Yolo County Animal Control officials to harmlessly remove the colony.

"We don't have Africanized bees here," she said. "(Honeybees) want to be left alone. It just looks scary. They're not trying to kill anyone."