Fascinating little map: south Wales feels Welshest, London doesn't feel English, and what's that little purple dot in the Midlands?pic.twitter.com/4rOpJuQC0b
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
Yeah, I wondered that too.... It's made with the 2011 census nationality responses
The NI map is the 2001 version so maybe life has moved on a bit,
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.