Yorkshire Blue and White Back Unknown illustrator, Public domain, via The Countryman's Daughter Metadata Conservation StatusExtinctLast Record1964Place of BreedingNorthern Yorkshire, EngandSynonymBilsdale BlueExtinction ReasonCrossbreedingReferencesFeeling the blues in Bilsdale. The Countryman’s Daughter. (2018, October 15). https://countrymansdaughter.com/2018/10/15/feeling-the-blues-in-bilsdale/ Porter, V., & Mason, I. L. (2002). Mason’s World Dictionary of Livestock Breeds, Types and Varieties (5th ed.). Wallingford, Oxfordshire, UK: CABI Publishing. Yorkshire Zealand Back to items list
