Wood Pewee, a shy forest bird of North and Central America. It is about 6 inches (15 cm) long with a wingspread of about 11 inches (28 cm). It is olive-brown above and whitish below, with two white bars on each wing. The bird feeds almost exclusively on insects, which it catches in flight. It builds a cup-shaped nest of grass on a horizontal tree limb. The female lays three or four creamy white eggs speckled with brown spots.
The eastern wood pewee nests in the eastern United States and southeastern Canada in summer, and winters in Central America. Its call, a plaintive pee-a-wee, pee-a-wee, gives the bird its name. The western wood pewee nests in the western coastal regions of the United States and Canada, and winters in Guatemala. It is distinguished by its harsh, nasal call of pee-eeer, pee-eeer.
The eastern wood pewee is Contopus virens; the western, C. sordidulus. They belong to the flycatcher family, Tyrannidae.