Do birds have accents? the regional differences in birdsong

Birds exhibit regional dialects and accents in their songs, with the same species singing noticeably different variations depending on their geographical location. Examples include woodpigeons, blue tits, and yellowhammers, which have distinct regional variations in their calls—such as the yellowhammer's "cheese please" section differing in pitch between eastern and western England. Interestingly, yellowhammers introduced to New Zealand in the 1860s-70s retained seven dialects from 19th-century Britain, some of which have since disappeared in the UK due to population decline.