Bernaswiss Mountain Dog (AKA Berner) is one of the four Sennenhund-type breeds that originate from the Swiss Alps. Berners originally were used as all-purpose farm dogs. This breed is an excellent guard- and watchdog, but not aggressive. They are well-known as self-confident, alert, and good-natured dogs. This breed tends to be stubborn, so early training is very important for them. They are very intelligent, and the pet parent has to keep them entertained. Berner’s energy level is moderate; they require constant daily exercises.