Keen Sight and Smell. The Accipitridae has advantage on Wisdom (Perception) checks that rely on sight or smell.

Pack Tactics. The Accipitridae has advantage on an attack roll against a creature if at least one of the Accipitridae’s allies is within 5 ft. of the creature and the ally isn’t incapacitated.

Rotting beak. Melee Weapon Attack: +3 to hit, reach 5 ft., 2 target. Hit: 11 (2d8 + 3) [necrotic] damage. 

Screeching retreat (recharges on 6). All creatures that can hear (max 60ft) the Accipitridae must make a dc 13 con save or take 12 (4d6) thunder damage and be deafened for 1 minute, on a successful save they take half damage. At the end of a creatures turn they can remake the save to get rid of there deafness.