We all know that dogs have a tremendous sense of smell. They experience a whole world of scents that we aren’t even aware of. Dogs can smell some odours from a considerable distance, which is why some breeds of dogs are so effective at hunting and tracking. It shouldn’t come as a surprise then to learn that dogs will regularly detect mice infestations in their homes long before their owners become aware of any problems. Dogs will pick up the strong ammonia-like scent of mouse urine long before human noses can detect it. When they catch this unusual scent in their home, dogs will often behave in ways that might seem strange initially.
If your dog has detected an unfamiliar smell from behind your walls, where mice often like to build their nests, it might start growling, barking, or sniffing and scratching at the spot the smell is emanating from. In some cases, they might just stand there staring without making any sound or movement. When your dog is suddenly showing an interest in a particular part of your home that it’s never seemed interested in before without any apparent explanation, it could be because they’re smelling something new for the first time.
You shouldn’t call in the pest controllers every time your dog sniffs or scratches at your walls, but a sudden and seemingly unshakeable interest in what appears to be nothing is worth investigating further. Remember that dogs, like other animals, love the warm spots in your home. Dogs will often lie down on the floor above heating pipes or outside boiler rooms where they can take advantage of the heat produced. However, if they are barking or scratching at the same area repeatedly, this could indicate that they have detected a mouse problem.