Dire corby

Dire corbies were a mutated semi-humanoid horrors that were once flightless birds.

They were common to the southern reaches of the Underdark.

Description
Dire corbies were bipedal and black skinned. They possessed a beaked bird's head, the torso of a man, and were both featherless and wingless. Both of their powerful-looking arms ended in hooked, wicked claws, and their legs ended in a three-toed foot.

Belwar Dissengulp remarked that dire corbies look like a drow-bird crossbreed.

History
Dire corbies were known to inhabit one of the vaults in Gauntlgrym around 1479 DR.