Why does my English Greyhound bark? Low: The Greyhound barks none to minimal. Perfect choice if you prefer a quiet breed. Top reasons for barking: protection, alarm, fear, boredom, attention seeking, greeting, separation anxiety, compulsive barking. Watchdog Ability . Is Greyhound good as a watchdog? Greyhounds are average watchdogs. If they sense something different, they will alert you, but ...