It provides details about the time of day that cannot be described from a first-person point of view.
Explanation:
The Call of the Wild is a brief adventure book by Jack London, written in 1903 and released in Yukon, Canada, when large snowmobile dogs were in limited supply. A dog called Buck is the lead character of the book. The story starts at a farm in California, where Buck has been kidnapped from his home and raised in Alaska as a working dog.
He's become increasingly wild in the desert environment, where he's forced to fight to live and control other animals. At the end, the dog loses the facade of society, drawing on the primal impulse and learned knowledge to arise as a ruler in the forest.