The western bluebird (Sialia mexicana) is a small North American thrush in the Turdidae family.
The western bluebird has been displaced from its natural habitat by the felling of trees; however it has adapted to coniferous forests, farmlands, semi-open terrain, and desert to survive. The year-round range includes California, the southern Rocky Mountains, Arizona, and New Mexico in the United States, and as far south as the states of Oaxaca and Veracruz in Mexico. The summer breeding range extends as far north as the Pacific Northwest, British Columbia, and Montana.
The western bluebird pounces on the ground when looking for food, such as worms and berries. It also flies to catch aerial prey, like insects, when available. The western bluebird consumes water from nearby streams and commonly used bird baths. These birds wait on a perch and fly down to catch insects, sometimes catching them in midair. They mainly eat insects and berries.