About Setophaga virens (J.F.Gmelin, 1789)
This bird species, Setophaga virens, has an olive-green crown, a yellow face with olive markings, a thin pointed bill, white wing bars, an olive-green back, and pale underparts with black streaks on the flanks. Adult males have a black throat and upper breast, while females and immature males have a pale throat and black markings on the breast. This species measures 4.3–4.7 inches (11–12 cm) in length, weighs 0.3–0.4 oz (8.5–11.3 g), and has a wingspan of 6.7–7.9 inches (17–20 cm). Its breeding habitat is coniferous and mixed forests in eastern North America and western Canada, plus cypress swamps on the southern Atlantic coast; it prefers dense stands of conifers. Nests of this species are open cups, usually placed close to the trunk of a tree. These birds migrate to Mexico, Central America, the West Indies, and southern Florida. One specific migration destination is the Petenes mangroves of the Yucatán. A small number of birds may straggle as far as South America, with the southernmost two records coming from Ecuador.
