Sometimes it may be as simple as him scratching to dig up that single crumb of food that fell in between the carpet threads.
Dog digs carpet during storm.
Your dog may be in pain.
In the wild dog ancestors would have dug out rodents or other prey possibly grubs or even tubers to eat.
Dogs will do strange and sometimes destructive things when they get bored such as tearing apart papers toys or chair cushions.
Your dog may also be digging into the carpet to soothe her separation anxiety.
Let your dog decide.
She may even dig and burrow in your bed.
Pain creates stress in both humans and dogs so if your dog is in pain he might become.
As for an example once dogs always do it during a storm or once strangers would come over then dogs are frightened and would just want to escape from the tormentor.
Lots of tasty things live underground so digging is the natural way to get to them.
There are certain medial situations that could cause your dog to act out in a destructive manner and pain is one of those medical situations.
Give the dog a safe place where they can go in a storm.
Many dogs will pace pant or quietly whine.
For example if he always does it during a storm or when strangers come over he may be frightened and attempting to escape from the tormentor.
When he isn t digging to retrieve food your dog may be digging to put away a tasty morsel like that leftover bone for a midnight snack.
For instance if her favorite member of the household just recently moved away to college across the nation your canine cutie may begin digging into the carpet as a way to access the absent companion as bizarre as that may seem to human ears.
Once dogs dig at the carpet as a response to outside stimuli it could be a response to anxiety or f ear.
Boredom can also cause dogs to dig at the carpet or couch cushions.
The signs are usually quite obvious so you probably already know your dog is phobic of storms.
Wolves and the wild dogs of their ancestors dug for various reason such as to build a den to protect pups from predators and extreme temperatures to create a soft resting area to bury items that they want to retrieve later and during hunting of small animals.
Some are clingy and seek attention.
There may be simple explanations as to why some dogs may engage in this behavior.
If your dog digs at the carpet in response to certain outside stimuli it may be a response to fear or anxiety.
There are many causes of this behavior but the main reason behind any type of digging behavior goes back to their instincts.
Other times it may be an interesting smell that compels your dog to dig at a particular location before he rolls in it much as he would do outside in the dirt.
Other dogs will hide frozen with fear.
If your dog is scared this frantic digging can be an attempt to find a safe and secure spot.
Notice where they go during a storm and if possible allow access to it.