Where are they from?
Rock pigeons will gather in most places where they can find feed. They will settle in cities as well as rural areas where they can nest. They can be found year round in most of North America and all of South America.
What do they eat?
They will eat fruit or seeds, but, if they can get it, they will also leave food behind by humans and other animals.
How do they act?
Rock pigeons are foragers who feed close to the ground. When they mate, they find small spaces to build their nests, which are generally lightweight and flimsy after they first build it. The nest will become more stable after build-up from feces in the nest, which is unlike other birds who remove these things from their nests. Once the nest is strong, the rock pigeon will use it repeatedly for raising their nestlings.
Here is a helpful video made by Avi Birds that shows how the Rock Pigeon behaves
Are they endangered?
Rock pigeons are listed as "Least Concern" on the International Union for Conservation of Nature (IUCN) Red List of Threatened Species.
Bird Blurb
Rock pigeons use the Earth's magnetic fields to find their way home when they have traveled or been moved elsewhere.
Can you find your way home with magnetic fields?
Source: https://www.allaboutbirds.org/guide/Rock_Pigeon/lifehistory