Townsend’s Warblers are distinctive warblers with conspicuous patterns of high contrast. They have greenish backs and gray wings, with two white wing-bars on each wing. Males have alternating black and yellow stripes on their heads. The black stripes across the eyes have yellow spots directly under the eyes. They have black throats and yellow breasts with black streaks on the sides. Their white outer tail feathers are conspicuous in flight. Females look similar to males, but have light throats and olive, rather than black, stripes on their heads. Juveniles look similar to adult females.