Asrigh’s Portal (49.11) has a carving that shows birds of paradise touching the ground and then turning into harpies.
A large flock of harpies broods below the arch. They are unlike harpies elsewhere. They are as large as common vulture but do not have women’s torsos or arms but rather the heads and voices of beautiful maidens. Despite having women’s heads, the harpies cannot speak. They babble, coo and scream inanely. A favorite tactic is swarming their prey and dragging them off the ledge.