Pickaxe would work though. Cordless drill would work but be very messy & inhumane. If you have one a bow & arrow works fine, and is a lot more likely to be lega

Pickaxe would work though. Cordless drill would work but be very messy & inhumane. If you have one a bow & arrow works fine, and is a lot more likely to be legal than a gun. The only disadvantage there is training, and a stationary target at short range is not that hard to hit.