The willow warbler is a small, migratory songbird belonging to the family Phylloscopidae. It is commonly found across Europe and parts of Asia during the breeding season. This bird has a distinctive olive-green plumage, a pale underbelly, and a characteristic song that consists of a series of melodic notes. During the winter months, the willow warbler migrates to warmer regions in Africa. It primarily inhabits woodlands, scrublands, and gardens, where it feeds on insects and other small invertebrates. The species is known for its adaptability to various habitats, making it a common sight in many areas during the breeding season.