by Mercedes
(Dedham, MA)
It is believed by some that the breed has Basque origins in Spain and was used there by shepherds. Those shepherds might, then, have emigrated to the West Coast of the United States via Australia. Included are some that are now extinct or that have merged into other breeds. These may have included some British herding dogs, as well as dogs from Spain including the Carea Leonés which I believe that the breed blue merle is the current local variation of this ancestors.
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