Trapping Magpies

I am looking for help and advice about  trapping magpies.

I am aware of someone who traps magpies in their garden for no other reason except they say they kill other birds that come in to the garden. I am not sure what traps are used but what has been described to me sounds like there is a small snare in a cage. The birds are left for hours in the sun, by the time the birds are taken out of the cage, they are battered and bleeding from trying to escape and some are half dead. I do not know for sure what happens to the birds when they are taken out of the cage, I have been told they are taken miles away and released again but I honestly dont think that is true.

This is a person who, last year tried to find someone to shoot the buzzards that fly over her garden, luckily no one would. The law dosnt seem to matter to this person.

I have emailed RSPCA and the league against cruel sports but I have not heard anything back.