From The Regnum Animale by Bishop Vitellus of Oaken:
Southwest across the Moonwane, the towns and fortresses of Thundravir huddle at the foot of the Dolmens, the great mountain range that divides north from south. The Thundraven are fierce warriors, though they tend toward the barbaric in their habits and outlook. Composed primarily of Mammalia and Avians, the Thundraven demonstrate a suspicion toward magic, but hold their seers and skalds in high regard. Their thanes swore fealty to the High King when he led the armies of Aurore to aid them against the Great Invae Incursion two centuries ago.