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Vireo (genus) : ウィキペディア英語版 | Vireo (genus)
''Vireo'' is a genus of small passerine birds restricted to the New World. Vireos typically have dull greenish plumage (hence the name, from Latin ''virere'', "to be green"), but some are brown or gray on the back and some have bright yellow underparts. They resemble wood warblers apart from their slightly larger size and heavier bills,〔 which in most species have a very small hook at the tip. The legs are stout. Most species fall into two plumage groups: one with wing-bars and yellow or white eye-rings, and one with unmarked wings and eye-stripes; however, the Chocó vireo has both wing-bars and eye-stripes.〔 Sexes are alike in all species except for the black-capped vireo, in which the male's crown is black and the female's is gray.〔 ==Feeding== All members of the genus mostly eat insects and other arthropods, but also eat some fruit.〔 A common pattern is arthropods in summer and fruit in winter.〔 Vireos take prey from leaves and branches and in midair, and the gray vireo takes 5 percent of its prey from the ground.〔
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