She can bark, but is very, very quiet by comparison to a normal dogs bark ( I'll try to find a video of her and send to youtube, so you know what I mean).
Arlie is a rescue dog, her previous owners had her debarked , vocal chords cut in operation, when she was 4 years old. They also had a 2nd dog at the time, got him debarked as well....disgusting !!! When Arlie was 6 1/2 yo they didn't want her anymore, and went to Border Collie Rescue, nobody wanted her, so we took her in.
BTW, debarking is illegal in my state, you have to find a dodgy vet to get it done. Unfortuneatly it is becoming more common to get done in the state where I live.
Debarking is sometimes done for health reasons, but mostly to muffle the bark because neighbours complain about barking dogs. Obviously, Arlie's previous owners didn't know anything about dog training, and took the easy way out instead !!!!