Why do wolves howl? Howling may be heard during the day or at night, it's not a behavior directed at the moon. Instead it's used as a social rally, a hail to hunt or as a territorial expression. Did you know that wolves have different howls that can be heard 6-7 miles away? A howl can also help a lost wolf find its way home. A wolf separated from it's pack uses a lonesome howl, a shortened call that rises in pitch, if answered the wolf then responds with deep, even howls to inform the pack of it

Why do wolves howl? The howl of the wolf is one of nature's most evocative and powerful sounds. The haunting chorus of wolves howling is beautiful – or frightening, depending on one’s point of view. Wolves howl to communicate with one another. They locate members of their own pack by howling, and they often engage in a group howl before setting off to hunt. The howl is a clear warning to neighboring wolves to stay away. The howl of the wolf is one of nature's most evocative and powerful sounds.

This is what 50 wolves howling sounds like. | Wolf Conservation Center

This is what 51 wolves howling sounds like