Around thickets and stream side trees of the West, this sky-blue bunting is common in summer. Males are conspicuous in summer, singing in the open, but the plainer brown females are far more elusive as they tend their nests in the thick bushes. During migration, flocks are more easily observed as they forage in brushy fields. Where Lazuli and Indigo buntings overlap in breeding range, on the Great Plains and parts of the Southwest, they often interbreed.