The Falcons are effective and work well.
I doubt that the alternative would suit PETA well.
The Airport in Sand Point, Alaska is located on the water, about a mile and a half off the end of it is a couple of Fish processors and the boat harbor. Needless to say these facilities and the cliffs that are off the other end of the airport are a Seagull magnet. In the early 1980's Reeve had a YS-11 that suffered multiple birdstrikes and ended up touching down short, causing considerable damage.
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Photo © Thomas Dugan
So it came to pass in the summer of 1996 I helped offload a shipment of 75 cases of 12 gauge shells off the daily flight in Cold Bay. Those shells where going to go to Sand Point, where the state, which had obtained a permit from FWS, where going to kill as many seagulls as possible.
Like I said they had 75 cases, each case holds 10 boxes of shells, and each box had 20 shells in it. That gives you an idea of how many birds they wanted to destroy(or how bad of shots they guys that work for the state are
OBAMA-WORST PRESIDENT EVER....Even SKOORB would be better.