You should be able to shoot down a drone trespassing above your land.
Had to look it up. Air rights is a thing. There was also a 1946 supreme court ruling that confirmed this and generally speaking 500 feet is the rule.
Air rights - Wikipedia.
"The exact altitude(s) at which the airspace over private land can become subject to "substantial impairment" is often debated. Case law in the past has used the height of 500 ft (150 m) in urban or suburban areas,[5] and 360 ft (110 m) above the surface or tallest structure in rural areas..."