The accentors are in the only bird family, Prunellidae, which is completely endemic to the Palearctic. This small group of closely related passerines are all in a single genus Prunella. All but the Dunnock and the Japanese Accentor are inhabitants of the mountainous regions of Europe and Asia; these two also occur in lowland areas, as does the Siberian Accentor in the far north of Siberia. This genus is not strongly migratory, but they will leave the coldest parts of their range in winter, and make altitudinal movements.

These are small, fairly drab species superficially similar, but unrelated to, sparrows. However, accentors have thin sharp bills, reflecting their diet of insects in summer, augmented with seeds and berries in winter.

They build neat cup nests and lay about 4 unspotted green or blue eggs. Both sexes incubate.

Species list:

• Alpine Accentor Prunella collaris
• Altai Accentor Prunella himalayana
• Robin Accentor Prunella rubeculoides
• Rufous-breasted Accentor Prunella strophiata
• Siberian Accentor Prunella montanella
• Brown Accentor Prunella fulvescens
• Radde's Accentor Prunella ocularis
• Black-throated Accentor Prunella atrogularis
• Koslow's Accentor Prunella koslowi
• Dunnock or Hedge Accentor Prunella modularis
• Japanese Accentor Prunella rubida
• Maroon-backed Accentor Prunella immaculata

Harrison (An Atlas of the Birds of the Western Palaearctic, 1982) used the group name Dunnock for all of the species, not just Prunella modularis (thus e.g. Japanese Dunnock for P. rubida); this usage has much to be said for it, based as it is on the oldest known name for any of the species (old English dun-, brown, + -ock, small bird: "little brown bird"), and a much more euphonious name than the contrived "Accentor".