Male Western Bluebird (Sialia mexicana), Feeding young in Nest Box, Southwestern Colorado, United States
Female Western Bluebird, Sialia mexicana, with Insect in its Beak, Being watched by an immature brown-headed Cowbird that it raised when Cowbird laid its egg in the bluebird nest, La Plata County, Colorado, USA, North America
Male Western Bluebird (Sialia mexicana), Southwestern Colorado, United States
