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Yellow-throated Vireo

The yellow-throated vireo is 5.5 inches long and weighs 0.63 ounces. It sports bright yellow spectacles (the combination of an eye ring and a supraloral line that contrast with the rest of the face), throat, and and breast, with two white wing bars and white underparts.

White-eyed Vireo

The white-eyed vireo is 5 inches long and weighs 0.04 ounces. It is olive-gray above and white below, with pale yellow sides and flanks; two white wing bars, and well-defined yellow spectacles (the combination of an eye ring and a supraloral line that contrast with the rest of the face). The distinctive white iris is visible at close range.

Warbling Vireo

The warbling vireo has the largest range of any member of the family in North America, being found from western and southern Canada through most of the United States. They are separated from other vireos by the plain face broken only by a white supercilium, the pale lores, a gray-green back, the lack of wing bars, and the mostly whitish underparts.

Red-eyed Vireo

One of the most abundant woodland birds in North America, red-eyed vireos can be found almost anywhere there are deciduous trees, including many woodlots and mixed forests. The gray cap, white supercilium, dark line through the eye, greenish upperparts, whitish underparts, and large bill are distinctive.

Philadelphia Vireo

The Philadelphia vireo is very similar to the red-eyed and is best separated by the color of the underparts, which are always yellowish, with the strongest color on the throat. The dark lores and more greenish upperparts separate it from the warbling vireo.

Blue-headed Vireo

The blue-headed vireo is five inches long and weighs .56 ounces. Its solid gray-blue hood contrasts with its white spectacles (the combination of an eye ring and a supraloral line that contrast with the rest of the face) and throat. The hood of females and immatures is partly gray. All ages have a bright olive back, yellowish wing bars, distinct white on the outer tail, and bright yellow sides and flanks, sometimes mixed with green.

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