Avian Grace is a Ranger utility power available at the 2nd level.
Avian Grace
Ranger Utility 2
You don’t know the secret of flight, but you have learned some lessons toward it
Daily ✦ beast, martial
Personal
Prerequisite: You must have a raptor beast companion
Effect: Until the end of the encounter, you can make long jumps as if you had a running start, and you gain a +2 power bonus on your fly speed (if any).