A small, grayish warbler. In Britain, breeding birds head south in autumn while birds from central Europe arrive for winter.
Males have a black cap, while females and juveniles have a brown cap. The rest of the plumage is grayish.
Birds breeding in Britain leave for southern Europe in autumn, and birds from central Europe arrive for winter. They also use parks, deciduous woodland and scrub.
An extinction-risk assessment has not been added yet.