Due to their intelligence and energy levels, what factor significantly increases the likelihood of an Australian Terrier developing nuisance barking?

Answer

Inadequate mental and physical stimulation.

If their energetic nature is not channeled into constructive engagement, these intelligent dogs are far more likely to find an outlet for their energy through unwanted vocal habits.

Due to their intelligence and energy levels, what factor significantly increases the likelihood of an Australian Terrier developing nuisance barking?
DogbarkAustralian Terrier