(Vancouver, WA) -- Residents of Vancouver, Washington are being asked to watch for yellow-legged hornets. One of the bees was found by an agricultural inspector on a ship at the Port of Vancouver. The Washington Department of Agriculture is concerned there could be more of the hornets. They attack honeybees, tearing them apart and bringing pieces back to their hive. Yellow-legged hornets aren't as big as murder hornets, but they can reduce honeybee populations by 30 percent.