Yes, Patterdale Terriers bark a lot and tend to be quite vocal. They are naturally alert and might bark to signal the presence of strangers or unusual activity. They might also bark when excited, especially during playtime or when anticipating a walk. If Patterdale Terriers don’t get enough exercise or mental stimulation, they might bark out of boredom or frustration. Consistent training and providing them with sufficient physical and mental activities can help manage their barking behavior.