Items, NPCs, quests, objects and spells of patch 1.12.1, read live from the realm itself.

Buzzard Gizzard

NPC	Level	Zone	Chance
Starving Buzzard	35 - 37	Badlands	80.0%
Buzzard	37 - 39	Badlands	80.0%
Giant Buzzard	39 - 41	Badlands	80.0%
Wayward Buzzard	35 - 37		80.0%

Quest	Level	Side
Badlands Reagent Run	39	Horde
Badlands Reagent Run	39	Both