Dull vireo with gray upperparts and white underparts. Relatively thick bill and slower movements separate this bird from other small songbirds. Combination of white spectacles and no bright colors distinguish Plumbeous from other vireos. Resident populations in northern Central America brighter, but not as bright as the slightly larger Blue-headed Vireo, which occurs as a visitor there. Found in mixed forested habitats, particularly dry, open coniferous forests. Feeds on insects.