Why worry about l@ser turrets or targetted radio jamming beams to disable them?
A good old shottey will do the trick up to a certain altitoode!
Both barrels... boom boom.
Or any other kinetic weapon.
Bit of good old buckshot right up them - eh?!!!
In fact the bird scarer bloke could be paid a bit extra to look after such duties around most airports - no?
And out of shotgun range - just mount a bleedin' Phalanx system on the control tower roof.
That'd sort the buggers.
Sorry - it's Thursday night here and I've run out of my meds...