The term 'Call of the Wild' is a reference to Jack London's 1903 novel of the same name. The novel follows the story of Buck, a domesticated dog who is taken from his home and thrust into the harsh realities of the Alaskan wilderness. The crossword solutions for this term are SLED (4 letters), WOLF (4 letters), HOWL (4 letters), ROAR (4 letters), BIRDSONG (8 letters), BUGLE (5 letters), and TIMBER (6 letters). These words allude to the various sounds that Buck would have encountered in the wild, such as the howling of wolves, the roaring of bears, the BIRDSONG of the forest, and the BUGLE of a SLED team.