Any of about 120 species of lively North and Central American songbirds in the family Parulidae. Wood warblers superficially resemble the true warblers of the Old World but are usually more brightly coloured (at least in the breeding season) and smaller (about 5 in. [13 cm] long). They commonly inhabit woodlands and sometimes marshes and dry scrub. Their songs are buzzy and monotonous. The usual nest is a tidy cup in a bush or tree. They lay two to five speckled eggs. See alsoblackpoll warbler; chat; redstart.