Fire Breath (Recharge 5–6). The dragon exhales fire in a 15-foot cone. Each creature in that area must make a DC 13 Dexterity saving throw, taking (3d6) fire damage on a failed save, or half as much damage on a successful one. Tail. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: (1d8 + 4) bludgeoning damage. Constrict. Melee Weapon Attack: +6 to hit, reach 10 ft., one Medium or smaller creature. Hit: (1d6 + 3) bludgeoning damage, and the target is grappled (escape DC 15). Until this grapple ends, the target is restrained, and the couatl can't constrict another target.
15 feet long, 8-10 feet high. Only hunts at night. Particularly mordacious creature that will snap and bite at almost anything. Its iridescent feathers have a fur-like appearance. Small, sinuous body; no legs, two small, moth-like wings that are capable of beating extremely fast.
Open grassland and desert, mountains, canyons, rocky foothills