Natural History: The Hutton's Vireo eats insects and fruits. It nests in oak and pine woodlands where it builds in the forks of twigs.
General Distribution: In the Presidio, this species can be found in oak and willow areas, and in ornamentals.
Frequency: This species is common throughout the year at the Presidio and it nests here.
Identifying Characteristics: This is a small bird with an olive-gray above with a white ring around its eye and 2 pale bars across its wings. It can be distinguished from the similar Ruby-crowned Kinglet by its larger size, thicker bill, and by the lack of a dark area below the lower wing bar.