This is the 10491st most frequent German word.
rangern
The word "rangern" does not exist in standard German. It may be a misspelling or regional variation.
Here "rangern" is used as a verb to describe the action of ranging or exploring over a certain area.
Die Wandergruppe rangern durch den dichten Wald.
The hiking group ranges through the dense forest.
In this context, "rangert" is used as the present tense form of the verb "rangern", describing the act of the ranger's explanation or discussion about park tasks.
Wir hören den Ranger, der von den verschiedenen Arbeiten im Park rangert.
We hear the ranger talking about the various tasks in the park.
Here "Rangern" refers to the plural noun form denoting individuals (rangers) and used metaphorically.