The White Warbler is a small songbird with a delicate song. It has predominantly olive-green plumage on its upperparts and white on its underparts, with a yellowish tinge on its wings. It feeds mainly on insects and spiders, which it nimbly catches among the leaves of trees. Its song is a sweet, repetitive trill, characteristic of the open, hilly woodlands it favors as its habitat. It winters in Africa and nests in southern Europe during the spring and summer. Its nests are well hidden among low vegetation. It can adapt to various types of forests, provided they are not too dense.