The Plumbeous Vireo (Vireo plumbeus), is a small North American songbird, ranging from far southeastern Montana and west South Dakota south to the Pacific coast of Mexico. It is a migratory species and winters in the southern part of its range. Its habitat is generally open pine forests.
The Plumbeous Vireo is 4.75 inches in length, with a gray head, back, and flanks, and whitish underparts. It has a solid white eye ring and white wing bars. The song, given persistently, consists of short, rough whistled phrases of several notes, spaced about 2 seconds apart. The phrases often alternate ending on a high note and a low note, giving an impression of question and answer.
The Plumbeous Vireo builds a cup nest out of bark strips and down in the fork of a twig. It lays 3 to 5 white eggs with some brown spots.