The Portuguese Sheepdog (Portuguese: cão da Serra de Aires, literally ‘dog of Serra de Aires’) is a medium-sized breed of dog of the herding dog type, and is one of the indigenous regional dogs of Portugal. The Portuguese name refers to Serra de Aires, a mountain near Montforte in the Alentejo region (sometimes mistaken for the Serra d’Aire, a range of hills or mountains marking the boundary between Ribatejo and Oeste, north of the Tagus river). The breed is nicknamed cão macaco (‘macaque dog’, ‘monkey dog’) for its furry face and lively attitude.
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Adapted from Wikipedia, CC BY-SA 4.0 — https://en.wikipedia.org/wiki/Portuguese_Sheepdog