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A herding dog, also known as a stock dog or working dog, is a type of pastoral dog that either has been trained in herding or belongs to breeds developed for herding. Their ability to be trained to act on the sound of a whistle or word of command is renowned throughout the world. Collies are recommended as herding dogs. ==Herding behavior== All herding behavior is modified predatory behavior. Through selective breeding, humans have been able to minimize the dog's natural inclination to treat cattle and sheep as prey while simultaneously maintaining the dog's hunting skills, thereby creating an effective herding dog. Dogs can work other animals in a variety of ways. Some breeds, such as the Australian Cattle Dog, typically nip at the heels of animals (for this reason they are called ''heelers'') and the Cardigan Welsh Corgi and the Pembroke Welsh Corgi were historically used in a similar fashion in the cattle droves that moved cattle from Wales to the Smithfield Meat Market in London but are rarely used for herding today. Other breeds, notably the Border Collie, get in front of the animals and use what is called ''strong eye'' to stare down the animals;〔("Heading dogs, huntaways and all-purpose dogs" ), Te Ara〕 they are known as ''headers''. The ''headers'' or fetching dogs keep livestock in a group. They consistently go to the front or head of the animals to turn or stop the animal's movement. The ''heelers'' or driving dogs keep pushing the animals forward. Typically, they stay behind the herd. The Australian Kelpie and Australian Koolie use both these methods and also run along the backs of sheep so are said to head, heel, and back.〔 Other types such as the Australian Shepherd, English Shepherd and Welsh Sheepdog are ''moderate'' to ''loose eyed'', working more independently. The New Zealand Huntaway uses its loud, deep bark to muster mobs of sheep.〔(【引用サイトリンク】url=http://www.raisingsheep.net/sheep-herding-dogs.html )〕 Belgian Shepherds, German Shepherd Dogs and Briards are historically ''tending'' dogs, who act as a "living fence," guiding large flocks of sheep to graze while preventing them from eating valuable crops and wandering onto roads. Herding instincts and trainability can be measured when introducing a dog to livestock or at noncompetitive herding tests. Individuals exhibiting basic herding instincts can be trained to compete in herding trials.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「herding dog」の詳細全文を読む スポンサード リンク
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