Aquilamimus

Keen Sight. The aquilamimus has advantage on Wisdom (Perception) checks that rely on sight.

Somewhat Controlled Fall. When the aquilamimus falls and isn't incapacitated, it subtracts up to 80 feet from the fall when calculating the fall's damage.

Ambush. The aquilamimus has advantage on melee attack rolls against a
surprised creature if it's at least 20 feet away from another creature.

Multiattack. The aquilamimus makes three melee attacks. If all attacks hit, the aquilamimus gains a +1 bonus to its AC until the end of the next round.

Beak. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 9 (1d12 + 3) piercing damage.

Taloned Kick. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 8 (1d10 + 3) slashing damage + 6 (1d12) bludgeoning damage.

Group Debilitation (Recharge 6). The aquillamimus lets out a cacophonous bellow while making a frightening display. Each hostile creature within 15 feet of it must succeed on a DC 14 Wisdom saving throw or have their attacks deal -3 damage until the end of the next round.