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

Sunscale Feather

NPC	Level	Zone	Chance
Sunscale Lashtail	11 - 13	The Barrens	80.0%
Sunscale Screecher	13 - 15	The Barrens	80.0%
Sunscale Scytheclaw	16 - 18	The Barrens	80.0%