What major divergence in breed standards exists between the UK and other regions regarding the Yokohama designation?

Answer

In the UK, 'Yokohama' sometimes categorizes birds called Phoenix chickens elsewhere

A significant point of variation in breed standards exists between the United Kingdom and other regions concerning the naming conventions for certain fowl within the *Gallus gallus domesticus* species complex. Specifically, in the United Kingdom, the term 'Yokohama' is occasionally used by breeders to categorize birds that are known internationally or elsewhere as Phoenix chickens. This highlights how regional preferences and historical lineage interpretations can lead to the same physical traits being assigned different breed names, even though they share the same underlying genetic heritage derived from the German selective breeding program.

What major divergence in breed standards exists between the UK and other regions regarding the Yokohama designation?
classificationpoultryChickenYokohama