Breed: Swedish Vallhund The Swedish Vallhund is a small, powerful, fearless breed that has been kept for centuries as a farm dog used for herding cattle and sheep. Today, they often participate in obedience, agility, tracking, herding and flyball. The Swedish Vallhund comes naturally with no tail (bobtail), stub tail or full curl tail. Their double coat is marked in a sable pattern and can be any color from grey to red. They are sometimes referred to as the Viking Dog.