In a lot of places, pigeons are considered nuisances. They overtake building, bridges, and any other structure they can. Often the only way to keep them under control is to apply deadly force.
Precision Varmiting in New South Walse, Australia show us how to get it done. Their go-to tactic is to shoot them using souped-up air rifles. And believe me, the can really stack them up.
Just check out some of their videos and you will be impressed.
If you are interested in the set up you can check out the gear list here.
These guys are always posting cool videos, so give their page a follow and enjoy.