- Overtheyears,everythingfromgascanons,pyrotechnics,lasers,ultrasound,stuffedowlsandradio-controlledmodelaircrafthavebeentriedtoscarebirdsawayfromrunways.Foralongtime,itwillinevitablybeblurredbypyrotechnics.However,therewillalwaysbehalfaglassofglaze,ba...
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