Ravener

Though their lifespans can measure in millennia, all dragons must eventually perish. While many do so on the blades or under the spells of dragonslayers, some manage to outlast their enemies and must, in time, face the truth that awaits all living creatures at the end of their natural life span.

Ravener (Creature 21), Ravener Husk (Creature 14)

Cunning and paranoid, raveners prefer to make their lairs in places hostile to mortal life: atop peaks so high that living creatures struggle to breathe the rarefied air, submerged beneath pools of magma in the caldera of an active volcano, and so on.