Read the list of phrases from the story.

occasional whistle of a quail

tapping of a woodpecker

cry of the tree toad

hooting of the screech owl

rustling in the thicket

HOW do these phrases contribute to the TONE of the story

These phrases contribute to the tone of the story through the atmosphere they create. The onomatopeic nouns (whistle, cry, hooting, rustling) are concerned with the sounds that the animals do, so the reader can get immersed in the story and imagine how it would be to be right there, surrounded by all those sounds.