The Yellow-throated Vireo (Vireo flavifrons) feeds mostly on insects, and some berries, especially in the fall. In summer, over one-third of its diet may be caterpillars, moths, and butterflies. It also eats tree bugs, scale insects, aphids, leafhoppers, beetles, sawflies, tree crickets, dragonflies, and cicadas.
The Yellow-throated Vireo nests 20 – 40 feet above the ground. Both sexes help build open thick-walled cup nest and feed nestlings. The parents divide the fledglings, each adult caring for part of the brood.
Distribution & Habitat
This vireo species prefers tall deciduous trees at the edge of forests, along streams, roadsides, orchards, parks, and estates. Its distribution range covers Minnesota, Ontario, and southern New England south to the Gulf states. It winters from southern Mexico to northern South America.
The Yellow-throated Vireo is fairly common. However, its numbers have decreased in recent years because of the spraying of trees with toxic chemicals.