Drones are becoming a nuisance.

You may be powerless to stop a drone from hovering over your own yard

“There is gray area in terms of how far your property rights extend,” said Jeramie Scott, national security counsel at the Electronic Privacy Information Center. “It’s going to need to be addressed sooner rather than later as drones are integrated into the national airspace.”
The issue is becoming more urgent as drones are crowding America’s skies: The Consumer Technology Association estimated 700,000 were sold last year.

READ MORE:   https://www.washingtonpost.com/news/the-switch/wp/2016/01/13/you-may-be-powerless-to-stop-a-drone-from-hovering-over-your-own-yard/

In my opinion, if they are low enough to take them out with a shotgun, you should have the right to do so.