Crows seem smart , never can see one when you got the gun handy .
How about mounting a gun on the drone .... works for the US ;-) Then the arms race begins . Would be great if we could cull feral camels , goats , buffalo etc with drones . Sure we could charge the general public to drive them as some sort of live gaming experience
https://www.youtube.com/watch?v=SNPJMk2fgJU