The variation in horse sounds between regions can be attributed to cultural and linguistic influences. In New England and East Anglia, horses produce the sound known as "neigh," reflecting local terminology, whereas in the Middle States of America and the Midlands of England, they are said to "whinny." This difference highlights how language and environment can shape the way animals and their sounds are perceived across different areas.

This phenomenon serves as an example of how regional identities can influence ordinary experiences, such as the sounds horses make. Bill Bryson's observation in "Made in America" illustrates that even common elements in nature can vary based on geographic and cultural contexts, further emphasizing the uniqueness of American and British vernaculars.