Che is not a barker at 10 months and he was pretty quiet while a baby. He is vocal at times, for example we are working on vacuum issues but generally he does not run to the fence to bark, does not bark in the window, does not bark while running agility course etc. My theory- it is partly result of his temperament and partly our effort. He has good and steady temperament, not noise sensitive. He also was rarely left alone, received tons of attention and training. We worked hard on " good dog is tired dog" " fun is outside, house is place to rest" goals.