Elder Storm Owl (5e Creature)
From D&D Wiki
Elder Storm Owl
Large beast, neutral
Skills Perception +5, Stealth +4
Flyby. The owl doesn't provoke opportunity attacks when it flies out of an enemy's reach.
Talons. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 13 (2d8 + 4) piercing damage and 1d8 lightning damage.
Beak. Melee Weapon Attack: +6 to hit, reach 5ft., one target. Hit: 20 (2d10 + 4 piercing damage and 1d8 lightning damage.
Lightning Breath (Recharge 5-6). The owl exhales lightning in a 40-foot line that is 5 feet wide. Each creature in that line must make a DC 14 Dexterity saving throw, taking 28 (8d6) lightning damage on a failed save, or half as much damage on a successful one.
Elder storm owls often befriend fey and other sylvan creatures and are guardians of their woodland realms.