Only breeding male black-throated green warblers (Setophaga virens) have a solid black throat. A small songbird of the New World warbler family, the crown and upperparts are olive green, throat and sides of breast black, face yellow. The female is similar but duller. Beginning in August, Black-throated Green Warblers move south from the breeding grounds, east of the Great Plains, to the winter grounds in eastern and southern Mexico and Central America. Small numbers winter in south Florida, the Bahamas and Greater Antilles, south Texas, and northern South America.