The red-eyed vireo is about 6 inches long—an olive-backed, white-bellied bird with a gray cap and bold white stripe over its bright red eyes. Males and females are similar. They have sharp, slightly hooked bills designed to catch insect prey. Despite their small size, they are strong fliers; their twice-yearly migration carries them to the […]
In summer they can be found in a variety of wooded habitats, usually lower than those favored by red-eyed vireos. They favor open woodlands, streamside willows and alders, and areas regenerating after fires. The songs and calls are so similar to those of red-eyed vireos that most bird watchers cannot tell them apart with confidence.
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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
