No, red heelers are not anxious dogs. Typically, they’re confident and independent dogs that enjoy being in new environments and meeting new people.
However, they’re very devoted to their chosen human and need to be close to them. If left alone for extended periods, they can become anxious. Their anxiousness may manifest into destructive behavior.
The key to helping a red heeler stay happy and confident is to let it be your constant companion, providing plenty of challenges and allowing it to help you to accomplish whatever you need, whether it be a 5k run or a duck-herding session.
