Every roof has a tall pole with a bird's nest. What's the description?

What you are asking is that a tall pole with a bird's nest on each roof is an environmental description? Environmental description. The description of the article is divided into six types: portrait description, action description, environment description, language description, expression description, and psychological description. This sentence describes the pole on the roof and uses environmental description. A tall pole with a bird's nest erected on every roof comes from a sentence in a rural sketch article.