Drones are the primary air unit of the Shivitiri.
The Drones' main function is to be ready to fertilize a receptive Queen. Drones in a Hive do not usually mate with a virgin Queen of the same Hive but they do mate for life. Mating generally takes place in or near Drone congregation areas. It is poorly understood how these areas are selected, but they do exist.
Several Drones mate with a virgin Queen on her mating flights a good distance away from the Hive. Mating sometimes occurs in flight, which accounts for the need of the Drones for better vision, which is provided by their large central eye.