The Carrion Birds are vulture-like, winged creatures who hover in the sky. They come down to consume creatures killed by either the Hunters or the Monster. This is the mechanic which, like a monster spooking batrays, alerts the hunters.
These vultures have a chance of swooping down when the monster has killed wildlife. The chance of this happening increases as the monster stages up. This will alert the monster similiar to the Batrays. You cannot stop this from happening as a monster. Note that, however, they cannot find corpses that are in areas without direct line of sight to the sky, so caves and other such places serve as a cover from them.
The Carrion Bird cannot be consumed.