How does Richard Adams use imagery in Watership Down?

Imagery:

“Here and there one sat upright on an ant heap and looked about, with ears erect and nose in the wind. But a blackbird, singing undisturbed on the outskirts of the wood, showed that there was nothing alarming there, and in the other direction, along the brook, all was plain to be seen, empty and quiet. The warren was at peace.”

Bigwig and Hawkbit chased each other through the long grass. Speedwell jumped over the little brook that ran down the middle of the field and when Acorn tried to follow him and fell short, Silver joked with him as he scrambled out and rolled him in a patch of dead oak leaves until he was dry. As the sun rose higher, shortening the shadows and drawing the dew from the grass, most of the rabbits came wandering back to the sun-flecked shade among the cow parsley along the edge of the ditch. Here, Hazel and Fiver were sitting with Dandelion under a flowering wild cherry. The white petals spun down around them, covering the grass and speckling their fur, while thirty feet above a thrush sang, “Cherry dew, cherry dew. Knee deep, knee deep, knee deep.”