A bark is a juvenile noise, located acoustically between a snarl and a yelp. Siberians, true to their heritage bark less than many other breeds. The reason for the husky’s infrequent barking may be that barking is a territorial call, and huskies like wild dogs are almost uniquely non-territorial. A lot of husky barking is an invitation to play.
Howling is a primitive trait in dogs, meaning breeds of ancient lineage are much more likely to howl. No one knows the huskies reason for their how, we do know that the sometimes howl when they are bored, but are equally likely to howl amidst the company of other Siberians. The howl is a low pitched sound with long duration – two qualities needed to carry it for miles. Each howl is individual, wolves are known to recognise pack mates by the unique sound of each members howl. The dog with the deepest howl or bark is usually the alpha dog.
If you own more than one Siberian you may find they start a community howl. Because they howl at different pitches and use different modulating tones, which echo and bounce off walls, a pair of Siberians can easily sound like dozens. This trick is used by wolves to often fool their opponents into believing that the pack is larger than it really is.