4. Schipperke

Nicknamed the “Little Black Devil” in their native Belgium, Schipperkes were originally bred to guard canal barges and hunt shop vermin. Weighing 10 to 16 pounds, this compact, fox-like dog exhibits boundless curiosity, high energy, and unwavering confidence.

Schipperkes are natural perimeter patrollers. They frequently check doors, windows, and yard lines to ensure everything remains in order. If an unfamiliar individual approaches your property, a Schipperke responds with a powerful, sharp bark that leaves no doubt about their vigilance.