The Tennessee Warbler is a long-distance migrant from Canada to Central America that occasionally pauses in Arizona during spring and fall. Small and plain greenish-gray, it can be identified by its sharp bill and habit of foraging high in trees, often near blooming willows. Tennessee Warblers are voracious consumers of caterpillars and are especially fond of spruce budworms in their breeding range. In Arizona, they are most often seen in riparian areas and high-elevation woodlands.
