One of sixteen Scare Wars remote bird deterrent units is located on the outskirts of the flightline on Langley Air Force Base, Va., March 22, 2011. Scare Wars is a remotely controlled bird and wildlife abatement system that uses liquefied petroleum gas cannons and bird distress cries to remove birds from the airfield in order to prevent damage to aircraft and personnel. (U.S. Air Force photo by Staff Sgt. Ashley Hawkins/Released)