Anzu, Sumerian Imdugud, is the lion-headed eagle of Mesopotamian epic, the monstrous bird whose wings make the storm. In the Akkadian Anzu epic he steals the Tablet of Destinies from Enlil while the god is bathing, and the gods send Ninurta to bring it back; the Sumerian tale Lugalbanda and the Anzud Bird tells instead of Lugalbanda caring for the chick and being granted speed in return. He is a monster of narrative, not a deity with a cult.
Modern Practice
Anzu is worked as the thing that takes what was not its to take, and as the wind that has to be answered by somebody. Since there is no cult, the entry describes a figure rather than a devotion, and the offerings field says so.