Ключевые слова: adult, agility, animal, bitch, border collie, brown, canine, coat, dog, domestic, down, female, friendly, front, guard, guarding, hair, head, herd, herding, indoors, isolated, large, laying, long, looking, male, mammal, mouth, movement, obedience, outdoors, outside, pet, playing, police dog, portrait, protection, purebred, running, sheepdog, shepherd, shot, sitting, tongue, training, vertical, young,