Boston Terriers are known for their loyalty and affectionate nature, but they also possess a surprisingly protective instinct.
They are also incredibly alert dogs that will not hesitate to let you know if they sense any danger.
Beagles are loyal, intelligent, and known for their excellent sense of smell. These traits make them fantastic watch dogs.
They tend to bark a lot, which can also make them a great early warning system for any security threats.
With a constant desire to hunt and sniff around, Jack Russells are an incredibly alert breed.
They make for great family companions and are known for their intelligence and strong personalities. They are always alert