A new study claims the chances of drones damaging a passenger plane are fairly slim, NBC News reported.
The study’s authors, Eli Dourado and Samuel Hammond, used revised methodology that weighed the risk of plane collision versus the risk of the collision being fatal.
The duo, from George Mason University, said birds, not drones, are crowding the skies. The two say most collisions happen with birds.
The Federal Aviation Administration has predicted the country's air traffic could be threatened from unmanned drones.