How does the breed's reserved nature with unfamiliar individuals sometimes manifest in terms of vocalization?

Answer

Cautious barking directed toward unfamiliar people or dogs.

Their tendency to be reserved with strangers can translate into a cautious vocal warning when encountering unfamiliar people or other dogs, rather than purely territorial barking.

How does the breed's reserved nature with unfamiliar individuals sometimes manifest in terms of vocalization?
DogbarkAustralian Terrier