Other Names: none
Distribution: southern Canada and the northeastern United States in summer; Central America south through Venezuela in winter.
Size: 10-11 cm in length with a 18-21 cm wingspan, weighing 8-13 g.
Plumage: Both sexes have a yellow-green crown, long chestnut line on the sides, white undersides, and a streaked back. Juveniles are uniform yellow-green above and dull off-white below, with a white eye ring and yellow wing bars. The legs, beak, and eyes are black.