Vireonidae is a family of small to medium-sized birds known as vireos, primarily found in the Americas. They are characterized by their greenish or grayish plumage, which helps them blend into their leafy habitats. Vireos are often seen in forests, woodlands, and shrubby areas, where they forage for insects and fruits. These birds are known for their distinctive songs, which vary among species. Vireonidae includes several genera, with the most recognized being Vireo. Many species within this family are migratory, traveling between breeding and wintering grounds, showcasing their adaptability to different environments.