Lancaster you are right and you are the right person to judge them because you are talking of "controlled hunting of sea mammals" but they don't talked of controlled hunting they made a type of No fly zone in fact many of them shoot all birds move in the air.
These kind of hunter are typical of two areas the Brescia zone and the area of Vicenza, in fact they have specials nickname given by hunters of the others areas.
Take in mind the biggest bird the shoots is smaller than a sparrow.
Ps. In Tuscany we prefer wild boars