Description: The gray vireo is about 14 cm (5.5 in.) long. Plumage plain, with gray back and white below; has narrow white eye-ring, dull white lores, long tail, and only one faint wingbar (not two as in other vireos). This species is the only vireo that flicks its tail as it forages in undergrowth. Nesting season from April to June; clutch size 3 - 5 eggs; incubation and fledging time unknown. Gray vireo nests are parasitized by brown-headed cowbird (Molothrus ater).
Diet: Gray vireos feed mostly on insects.
Habitat: In dry brush of arid mountains and mesas, chaparral, pinyon-juniper, sagebrush, and mesquite communities, usually hidden in shrubs. Nests hang from twigs or forks of tree or brush.
Range: Southwestern United States to central Mexico. Summer resident and breeding in Clark County, Nevada.