Other Names: Calaveras Warbler
Distribution: southern Canada and the northeastern United States in summer, with a discontinuous population in the Pacific Northwest; central Mexico in winter.
Size: 10-13 cm in length.
Plumage: Olive green above and bright yellow below, with a gray top and sides of the head, a narrow white eye ring, and an inconspicuous patch of rust to magenta on the crown. The legs, beak, and eyes are black.