3rd level. Harpy.
Dwelling - Harpy Nest.
Harpies are the first of the races created by the K'tharr, possessing a small but noticeable intellect. They live in tribes in the lands of the High Realm and are completely controlled by the K'tharr. However, they are not mindless slaves; they hunt in packs, and the larger the pack, the more confident each member feels. Also, when attacked, they retreat.
Abilities: flying creature, hit and run, pack hunting (for every 25 units in the stack, morale and attack increase by 1), controlled.
Harpies - Scavengers.
Dwelling - Harpy Lair.
These creatures are nightmares incarnate. They do not hunt in packs but are stronger than their kin. They can also devour corpses on the battlefield, restoring themselves.
Abilities: flying creature, hit and run, scavenger.
Harpies - Witches.
The most respected in the harpy tribes are the harpy witches. The admixture of magical blood has given them the ability to use magic, but the K'tharr have limited their abilities to a minimum threshold.
Abilities: flying creature, hit and run, spellcaster (magic bolt, weakness).
Phew, I wrote it. How is it?
Added 12 minutes later
I'll write about the Psionic later...