Unlicensed operators responsible for more near misses involving drones: study Hamilton Spectator CALGARY — A new study says there are more drones in the air than piloted aircraft and the numbers of close calls between the two continue to rise.Drones now outnumber manned aircraft in Canada's skies: study - CTV News Growing use of drones creating more close calls: U of C study - Calgary Sun Growing use of drones creating more close calls: U of C study - Calgary Herald Full Coverage