Why do dogs bark when no one is around?

In the subconscious mind of a dog, its sense of sovereignty is very strong, especially its sense of territory. If a dog stays in one place for a long time, it will They will naturally feel that this is their own territory, and they are warning others and declaring this territorial awareness.

Dogs are highly sensitive to the outside world. They are extremely sensitive to any changes in their surroundings, such as the falling of a leaf or the passing of a gust of wind. Especially in the dead of night, dogs can be more sensitive to hearing. Other sounds will make a cry.

A dog barking at an unoccupied place may also be due to hunger. At this time, it needs to be provided with sufficient water and food. Dogs may also bark due to illness causing physical discomfort. The dog's condition needs to be checked and treated in time.