Stop Pigeon Shooting in Frinton

So i was walking my dog in the fields in frinton when i came across this loud bang....so i followed where it was coming from and went over to see a guy shooting pigeons right in front of me! and then had his dog tear the pigeon apart, i asked him why he was doing this and at first he said it was because of his crops....well surely you would just put a net over your crops....but then he changed his statement telling me he sells them and gets them processed into meat! Our innocent birds are being shot for a hobby pretty much and the noise is awful! imagine a child walking past and having to see that?! it was the most awful sight i had ever seen, he had dead pigeons flying on a twisting thing which was enough to disgust you.