Red-eyed vireo Vireo olivaceus

Identification Tips:

• Thick bill with hooked upper mandible
• Sexes similar

Adult:

• Red eye
• White supercilium bordered above by a dark line and below by a dark eye line
• Gray crown contrasts with olive-green back and upper wings
• No wing bars
• White underparts
• Yellowish cast to flanks and undertail coverts in fresh plumage
• Blue-gray legs

Juvenile:

• Brown eye
• Yellower underparts than adult

Similar species:

Warbling Vireo has a grayer back, no black borders to the white supercilium, and a dark eye. Philadelphia Vireo has yellower underparts, a less distinct supercilium and a dark eye. In Florida the Black-whiskered Vireo can be distinguished from the Red-eyed by its black malar streak. In South Texas the rare Yellow-green Vireo is much yellower below and has much paler black borders to the supercilium than the Red-eyed. All other vireos have wing bars.