https://www.chewy.com/education/dog/training-and-behavior/how-to-train-dog-not-to-bark
Barking is a natural way for dogs to communicate, much like whining, growling, or howling. Dogs may bark for a variety of reasons - whether they are feeling playful, threatened, in need of attention, or trying to alert you to potential danger. Breed and genetics can also influence barking tendencies.
Problem barking does not have a single cause - it can stem from anything like fear, stress, boredom, or even the need to self soothe. Sometimes, the lines between different types of barking can blur. An alarm bark might evolve into a territorial one, while an excited bark could include signs of frustration. Understanding the reason behind your dog’s barking is the first step toward managing it effectively.
Chewy offers both a helpful video and a detailed table that outlines some of the most common causes of barking, making it easier for pet parents to understand what their dog is trying to communicate. These resources can help you identify whether your doggie is barking out of excitement, fear, frustration, or something else entirely - so you can respond appropriately and support their needs more effectively.