I dunno. The language in the link Wolf posted seems pretty clear:

[QUOTE]The air is generally a public highway and the airspace overhead is part of the public domain[ii]. But, if a landowner is to have full enjoyment of his/her land, s/he must have exclusive control of the immediate reaches of the enveloping atmosphere[iii]. Accordingly, a landowner is protected against intrusions in the airspace immediate and direct as to subtract from the owner’s full enjoyment of the property and to limit his/her exploitation of it[iv].[QUOTE]

I would think that a drone buzzing around in the airspace immediately over my property would certainly “subtract from my full ownership of the property”. And if, as a landowner, if I am to “have exclusive control of the immediate reaches of the enveloping atmosphere”, I think I would be within my rights to, say, water my air with a powerful hose, as I see fit. Not saying I’d have any right to preclude a drone from flying over anyone else’s property, but directly over mine, and low enough to be a nuisance? I’d try asking politely, but only once.