The Entlebucher Sennenhund or Entlebucher Mountain Dog is a medium-sized herding dog, it is the smallest of the four regional breeds that constitute the Sennenhund dog type. The name Sennenhund refers to people called Senn, herders in the Swiss Alps. Entlebuch is a region in the canton of Lucerne in Switzerland. The breed is also known in English as the Entelbuch Mountain Dog, Entelbucher Cattle Dog, and similar combinations. As with all large, active working dogs, this breed should be well socialized early in life with other dogs and people, and be provided with regular activity and training. Temperament of individual dogs may vary. The Standard says that the breed is 'good-natured and devoted towards people familiar to him, slightly suspicious of strangers.' (Source: Wikipedia.org, CC BY-SA)