The latin name for this species is just "Mexican bird" (from Greek 'sialis'). In English it is called "Western bluebird" which is slightly more expressive as it is a predominantly blue bird that occurs in western North America and Mexico. The English name is also linked to the notion of "bluebird of happiness" in many cultures. Since time immemorial, this species has nested in depressions, woodpecker nests and other cavities, but nowadays it likes to settle in nesting boxes. The latter obviously protect better against predators. The birds percht, as here in the picture, in a favorite position some distance from the ground and fly down just to pick up a berry or a worm. Berries and insects are the main food.