7-Letter Birds Starting with 'BUS'

A very small, active, long-tailed songbird of the family Aegithalidae, native to the scrublands, chaparral, and open woodlands of western North America.

Any of several large, heavily built terrestrial birds of the family Otididae, native to the open plains, dry savannas, and steppes of Europe, Asia, Africa, and Australia, characterized by their stout legs and elaborate courtship displays.