Ключевые слова: active, adult, animal, beautiful, behavior, bond, border, border collie, breed, canine, cheerful, collar, collie, cute, dog, dog collar, dog owner, doggy, domestic, education, free, friend, going out, happy, head, lead, leash, mammal, man, nature, obedience, outdoor, outside, park, pedigree, pet, play, portrait, puppy, purebred, small, summer, training, walk, young,