Caylais Moonfeather

Caylais Moonfeather was a level 65 hippogryph flight master located in Auberdine in the night elven zone of Darkshore. She has since been replaced by Teldira Moonfeather in Lor'danel.

In Cataclysm
Caylais died during the destruction of Auberdine in Cataclysm, and her body can be found near where she used to stand, surrounded by the corpses of three enraged hippogryphs.

When inspecting her body during Coaxing the Spirits, it is stated that being far too powerful for the air elementals, Caylais and her hippogryphs must have been struck down by something else, suggesting that they've been killed maybe by members of the Twilight's Hammer.