Puppies bark because we humans want our puppies to bark. For years our domestication process and selective breeding have allowed our puppies to develop their barking abilities. Wolves don’t bark Barking was further developed in puppies in order to scare intruders or to help the master out (i.e. on farms to assist in gathering the sheep).
Most puppies simply bark to communicate, to get attention, or simply to show their excitement. Training and lifestyle are important factors in teaching the puppy how to communicate with its master. If you reward your puppy for barking, he will continue to do so. The best thing is to figure out what your puppy is trying to tell you and go from there.
The amount of barking a puppy does will also vary depending on the breed of dog your puppy is. For example, herding dogs have a tendency to bark a lot because it was part of their job to herd sheep or cattle and barking is just part of the herding to get the job done.
If you have a puppy that barks excessively, try to figure out what he is trying to tell you. If the excessive barking is because he wants attention, the way to break the cycle is to wait for him to be quiet and then give him the attention he needs. By acknowledging the barking, you reinforce it. Waiting until he quiets will teach him that he gets attention when he is not barking.
Some puppies are extremely territorial. They will bark at not only a person approaching but someone they see walking across the street or on the next block. The best way to stop this is to distract him when he starts to bark. Catch his attention with a treat or by playing. Every time the bark cycle is broken, it sends the message that quiet will get the most reward.
Taking the time to discover what your puppy is communicating will result in less stress for both you and him. He will get much-needed attention and you will get quiet. It’s a situation you both win.