A month or two ago a swarm of bees made a nest near the roots of our olive tree's trunk in our patio. They are very busy going back and forth after the sun rises. We want to know how long the hive will remain there, and what we should expect regarding this hive. Will they go dormant in the winter? Will we get stung if we try to clip a hedge near the opening in the trunk? Should we wait for winter to trim the hedge? Will they take off one day or are they permanent residents? We know very little about bees but enjoy watching their activity.