Notice the neat variety of voices in this family concert. It involves four coyotes: two youths and two adults! It was prompted by the sounds of a distant siren — or, maybe it wasn’t distant, but just sounded distant because of the wind and fog. The fog was thick and the wind was gusting, creating the ambient sound you hear in the recording. The weather added to the mood of the “piece”!
I think, possibly, that a happy family chorus serves the same purpose for coyotes as a big family hug!