Swainson's Hawk summers in much of the Western United States, migrating to South America during the winter months.
Unlike the Cooper's and Sharp-shinned the Swainson's preference is flying over grasslands, farmlands, and ranches looking for small mammals and reptiles. It is skilled at capturing insects in flight. So as it begins to head south for the winter it follows nomadic dragonflies. Yet it will also feed on grasshoppers and caterpillars.