What is Birchen colouring?

Birchen colouring is a specific coat pattern found in certain breeds of dogs, particularly in the Kerry Blue Terrier. It features a base color of black or dark grey with lighter, brindle-like markings, often giving the appearance of a "birch tree" effect. This pattern is characterized by a mix of dark and light hairs, creating a unique, mottled look. Birchen colouring is relatively rare and is often associated with specific genetic traits in the breed.