Pigeons are often both a public nuisance as well as a headache for homeowners. The birds can usually be found on rooftops of buildings in densely populated areas, such as downtown areas. They also may hang around neighbourhoods if there is an attraction, such as a food source. Pigeons do carry disease, and they tend to cover the areas in which they live with layers of excrement. Such unsanitary conditions make it a priority to remove the birds whenever possible.
Call animal control or a local wildlife removal specialist. This is probably your best bet as far as getting rid of the birds. Wildlife specialists will have their own equipment, and they are familiar with pigeons and their behavioural habits. If your city has its own animal control service, it will usually provide its services to city residents free of charge.
Trap the pigeons using live traps. Purchase live traps from a hunting supply store, or borrow some traps from your local animal control if they have some. Bait the traps with seeds or bread, or any other foods pigeons feed on in your area. Place the traps on or near the rooftops where you see the highest concentrations of pigeons. Check the traps frequently, especially if you have a large local population of pigeons. Call animal control to see if they will take away any birds you catch. If not, you will have to transport them to another area, preferably far away.
Shoot the pigeons with a pellet rifle. Call your local police or sheriff's department to ask about your local laws before you attempt to shoot the pigeons. If you live within the city limits, there is a good chance it is illegal to shoot the birds. If you are outside the city limits, it may be permitted. Always make sure you are not shooting toward any other homes or groups of people. Always wear protective safety glasses or goggles while you are shooting. Gather the birds you shoot, and dispose of the bodies properly.
Poison the pigeons. This method should only be used as a last resort, and may also be illegal in many areas. If you do not have access to a pellet gun, and have no other means, you can consider poisoning the birds. However, you also run the risk of poisoning other species of birds, as well as other animals, such as squirrels. Any animals that find and eat the poisoned pigeons may die as well. You can use rat poison mixed in with bait, such as bread balls. Place the bait on the roof areas where the pigeons are congregating. Check the area frequently for dead birds. This method should only be used after all other possibilities have been exhausted. Dispose of dead birds properly.