Birds Have Regional Accents, and New Zealand Yellowhammers Still Sing 19th-Century British Dialects

Do birds have accents? the regional differences in birdsong

Birdsong varies not just between individuals but across regions, with species like the yellowhammer singing distinct dialects. Introduced to New Zealand in the 1860s, yellowhammers there retain seven dialects from southern England that have since vanished in the UK due to population declines. Urban noise and light also push birds to sing higher, faster, and earlier, while female birdsong remains vastly understudied.