What is a common sign that a dog is feeling stressed?

Excessive barking is indeed a common sign that a dog is feeling stressed. When dogs experience stress, they often vocalize more than usual as a way to express their discomfort or anxiety. This behavior can manifest in various situations, such as when they are in crowded environments, encountering unfamiliar people or animals, or experiencing changes in their routine.

While excessive barking is a clear indicator of stress, it is important to differentiate it from behaviors that signify calmness and relaxation, which would indicate the opposite emotional state. Similarly, high energy and playfulness can be signs of a well-adjusted and happy dog, rather than one that is stressed. Aggressive behavior toward other dogs might arise from fear or anxiety, but it is not the only or most common behavioral indicator of stress and is typically coupled with other warning signs.

Understanding that excessive barking corresponds with stress can help handlers take appropriate action to minimize the dog's anxiety and create a more comfortable environment for them.