The House Sparrow is not native to Arizona but was introduced to North America in the mid-1800s and has since spread widely across the continent. In Arizona, it is a common year-round resident, especially in urban and suburban environments where people provide food, water, and nesting opportunities. House Sparrows are easily recognized by the male’s gray crown, black bib, chestnut nape, and buff underparts, while females and juveniles are plain brown with streaked backs and duller facial patterns. Unlike native sparrows, which favor grasslands, deserts, and riparian habitats, House Sparrows thrive around human habitation—nesting in building crevices, eaves, and even traffic lights. Their adaptability and aggressive behavior allow them to outcompete some native cavity-nesting birds, making them one of Arizona’s most widespread non-native species.
