The Choir Spine dwells along high, wind-scoured cliffs where constant air currents pass through the hollow pipes that grow from its spine. As the wind moves, the creature subtly shifts its posture - tilting its head, adjusting its stance, and opening and closing its mouth to different widths - changing the pitch and tone of the sound carried through its body. Each variation produces a distinct, eerie call: some serve as warnings, others mark territory, and certain low, rhythmic patterns are reserved for long-distance mating calls that echo across the valleys below.
The thin, string-like filaments hanging beneath its neck are sensory tendrils, semi-rigid scales that vibrate in response to airflow and help fine-tune its resonance. Over time, these tendrils wear and fray, giving the creature its weathered, almost ceremonial appearance. When multiple Choir Spines occupy the same range, their calls can overlap and harmonize, turning the wind itself into a living, echoing chorus.