It looks very funny when your dog tries to get his own tail, but why are they doing it and can this behavior be bad?
The so-called tail hunting occurs in two groups, dogs, mainly puppies, who see it as a game and dogs that do it out of stress, in the latter case it is also called stereotype behavior.
Puppies are still very playful and run after everything that moves. Because they like to flip with their tail, this is a nice toy to go after. In itself innocent, but do not encourage the behavior and offers an alternative game. If your dog finds it normal to go after his own tail, it is not so easy to learn.
If a dog goes hunting chasing his tail from stress, you obviously want to intervene. You often see this behavior in dogs that are bored and limited in their freedom of movement, such as some dogs in the shelter. Tail hunting is a way for them to get rid of their stress and can be very addictive.
Once a dog has learned such a stereotypical behavior, he will also show it when he has no stress anymore. He then got a good feeling in carrying out the behavior and therefore has the motivation to continue to do so. It can get so bad that the dog spins around all day.
If you see the first signs of tail hunting or other stereotyped behavior in a stressed dog, do not give him attention at the moment he is busy, but wait until it stops and offer an alternative so that he does not do it again. Try to find out why your dog is stressed and take away this stress. Many dogs exhibit stereotypical behavior from boredom, if this is the case, but doing more with your dog is not an option, you can also look at snack balls and similar toys. With this toy your dog is motivated to play with it by the food that comes out.
Has your dog been involved with the stereotypical behavior for a while, then turn on a good behavioral therapist. The sooner your dog learns, the easier the process will be.