Ключевые слова: action, active, activity, agility, aussie, australian, australian shepherd, border collie, catch, catching, chase, competition, concentration, contest, disc, disk, dog, excitement, exercise, fitness, fly, flying, fun, funny, game, grass, happiness, happy, high, joy, jump, jumping, nature, pet, play, playing, run, running, shepherd, skill, sport, summer, throw, toy, track, training, tricks,