The reason I posted the link to the depredation permit wasn't that I was expecting everyone to rush out and pony up their $50.00 fee and jump through all hoops and comply with all the caveats.
I posted owing to the somewhat confusing issue of what constitutes "harassment" One of the questions on the form inquires as to the applicant's attempts to mitigate the problem by non-lethal means (including scaring the raptors away). So, unless the FWS is purposely trolling for `harassers' to bring before the bar, I'd expect bottle rockets fired in the general direction of the offending hawk is probably copacetic and safer/cheaper for all concerned.
Our resident, yearling, Red Tail spends all its time out in the open, stooping like a diving rocket for inattentive Bull Frogs on the edge of the pond. Under the trees, the CD/DVD's are still doing the job (a Kestrel `hit' one of our BSL's, once, but bounced off - big girl).