Functional Wings (3.5e Feat)
From D&D Wiki
Functional Wings [Abyssal Heritor]
You can fly with your demonic wings.
Prerequisite: Vestigial Wings
Benefit: With the wings gained from the Vestigal Wings feat, you gain a fly speed equal to your base land speed and clumsy maneuverability. With every other Abyssal Heritor feat (except for this one and Vestigal Wings) your maneuverability goes up one category (up to good as maximum) and you gain +10 ft. additional flight speed.
Special: Your wings are hard to hide, which gives you a -2 penalty on Disguise checks.