Chiteroc

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

Flyby. The chitera doesn't provoke opportunity attacks when it flies out of an enemy's reach.

Multiattack. The chitera makes three attacks, only one of which can be a bite attack.

Bite. Melee Weapon Attack: +7 to hit, reach 10ft., one creature. Hit: 14 (2d10+3) piercing damage.

Claw. Melee Weapon Attack: +7 to hit, reach 5ft., one creature. Hit: 10 (2d6+3) slshing damage. Instead of dealing damage the chitera can grapple the target (escape DC 13).

Psychic Screech. The chitera emits a high-pitched blast of sound in a 15-foot cone. Each creature in that area must succeed on a DC 15 Constitution saving throw or be stunned for 1 minute. A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.