Building a nest
One of the unkind creatures living in Thidwick's antlers begins to create a nest. Dr. Seuss uses imagery to show how the animals are hurting Thidwick, emphasizing the fact that the animals are using Thidwick to further their own interests:
"Just building a nest, sir," the Zinn-a-zu said,
And began yanking hairs out of poor Thidwick's head.
Disappointment
Seuss uses imagery to emphasize Thidwick's disappointment when he wakes to find that the animals are still there:
"But, alas! The next morning
The sun's early light
Brought to Thidwick's sad eyes
A most unwelcome sight…"
Thidwick's misery
Seuss uses imagery to describe Thidwick's misery after he has been taken advantage of by the animals. Seuss writes that "the big friendless moose walked alone and forlorn, with four great big woodpecker holes in his horn." This use of imagery emphasizes Thidwick's emotional pain due to his isolation from his herd, but also the physical pain caused by the selfish animals.