Grey Vireo

The gray vireo (Vireo vicinior) is a small North American passerine bird in the family Vireonidae, the vireos, greenlets, and shrike-babblers. It is found in the southwestern United States and northern Mexico. == Taxonomy and systematics == The gray vireo was originally described in 1866 as Vireo vicinior, its current binomial. The gray vireo is monotypic. == Description == The gray vireo is about 13 to 15 cm (5.1 to 5.9 in) long and weighs 11.5 to 13.5 g (0.41 to 0.48 oz). The sexes have the same plumage. Adults have a mostly gray crown and face with white lores and a thin white eye-ring. Their upperparts are gray that gains a greenish cast late in the year. Their wings are mostly dark gray to blackish with white tips on the greater coverts that form a wing bar. Their tail is gray with white edges on the outer webs of the outer feathers. Their chin, throat, and upper breast are a paler gray than their upperparts; their belly and undertail coverts are white. They have a dark brown iris, a plumbeous or blackish maxilla, a paler grayish blue mandible, and plumbeous or blue-gray legs and feet. == Distribution and habitat…