Attack of the drones: the mystery of disappearing swarms in the US

When groups of sinister drones began hovering over homes in America’s Midwest, the FBI, US Air Force and 16 police forces set up a task force. But the drones vanished. Did they even exist? Amelia Tait investigates

Horde of Alien Locusts - TV Tropes

Mysterious drone swarms flying at night are baffling US authorities

Drone swarms' that flew over Arizona nuclear reactor remain MYSTERY as federal probe ends with no answers

Responding to Drone Swarms at Sea Proceedings - December 2022 Vol. 148/12/1,438

The Airborne, Mysterious & Promising 6th-Gen NGAD Stealth Fighter May Control Drones, Come in Several Variants - Warrior Maven: Center for Military Modernization

Chapter 3 Tour de Drones for the Discerning Palate [Nichols] – UNMANNED VEHICLE SYSTEMS & OPERATIONS ON AIR, SEA, LAND

Vatican: Swarms of 'Kamikaze' Mini-Drones Pose Threat to Civilians

Up to six mystery drones spotted flying over UK nuclear plant, UK News

Colorado drone mystery sightings finally might be solved, Military

Why do honey bees swarm (or abscond) in the fall? - Honey Bee Suite

IEEE - Aerospace and Electronic Systems - May 2022 - 25