It's legal to do it by conventional means (e.g. shotgun*, peregrine falcon, cat), but anything too unconventional might get you into trouble on animal cruelty grounds.
*Assuming you have a licence for the shotgun, and operate it safely. I don't know the exact laws and regulations on destroying vermin on your own land with fire arms, but I'm guessing any downrange projectiles landing on other people's property is frowned upon :-)
It's legal to do it by conventional means (e.g. shotgun*, peregrine falcon, cat), but anything too unconventional might get you into trouble on animal cruelty grounds.
*Assuming you have a licence for the shotgun, and operate it safely. I don't know the exact laws and regulations on destroying vermin on your own land with fire arms, but I'm guessing any downrange projectiles landing on other people's property is frowned upon :-)