Prunellidae

Prunellidae, the accentors, is a small family of closely related passerine birds all placed in the genus Prunella, comprising twelve recognized species, all endemic to the Old World. Most accentors live in mountainous regions across Europe and Asia, though the dunnock and the Japanese accentor also occur in lowland areas. They measure 14 to 18 centimeters in length and weigh 25 to 35 grams, with thin sharp bills reflecting an insectivorous diet that distinguishes them from the superficially similar sparrows. Most species are gregarious and live in flocks, with the dunnock a notable exception in being largely solitary outside of feeding; accentors are not strongly migratory, making mainly altitudinal movements to lower ground in winter, though the Siberian accentor is exceptional in migrating 3,000 to 5,000 kilometers from Siberia to China and Korea.