im sure the impending sound of the 407 was longer than 10 seconds. but then again who knows what sounds were ground level and blocked it out.
I'm patenting a laser beam drone destructor. Called LBDD, which will automatically detect, track and destroy any object in the flightpath.
unfortunately in test trials, it has trouble distinguishing between birds and mechanical devices, so I'm sorry to the Audubon Society for the loss of those rare migratory birds. I hope the numbers can rebound with one good breeding season