A slim, graceful bird with subdued plumage of greyish and brownish tones above and greenish yellow below. It occurs in river valleys, hedgerows, allotments, generally in moister areas with dense vegetation. It has a melodious song, which can contain some mimicry. It feeds on small invertebrates such as insects, spiders and caterpillars. It is present in Extremadura from spring to the end of summer.