Old english sheepdog

This isn't  a popular breed here and you won't  easily find a pure bred dog of this breed in Andalucia. Yes there are plenty of sheepdogs, but they tend to be various Spanish breeds.  In the north, the Spanish Mastiff is the preferred breed to guard sheep as they have the strength to take on wolves and see off bears and the Catalan sheepdog is also very popular.

I imagine you are wanting a pet rather than a working dog as the Old English Sheepdog is an expensive breed to buy and maintain in good condition.  Almería has not really an appropriate climate for these dogs who would suffer greatly in the heat and need constant grooming This is maybe is why I've  never seen one here in 35 years of living in this province, but best of luck in your search.