Pigeons love cities. And they'd love some of your popcorn! Because they can fly long distances, they used to carry mail from place to place. Learn all about where pigeons make their nests and how many kinds of pigeons there are . Level Pre-1 readers are aimed at children who are starting to read. Basic language, word repetition and short, simple sentences help kids read with confidence. This project has been made possible in part by the Government of Canada.