Pigeons are found all over the world. They favor living near humans for easier food and nesting grounds. Pigeons love to nest under eaves or on top of roofs near or under A/C units or any other structure that can provide shelter. Pigeons will also eat just about anything, especially discarded food, or even pet food. They will even dig into garbage cans if there is anything easily obtained. You can find pigeons on the roofs of homes, parking lots, large garage parking, or on top of large buildings.