Improved Flyby Attack

 
Prerequisite(s): Flyby Attack, Mobility, Fly Speed
 
Benefit: When flying, the creature can take a move action (including a dive) and another partial action at any point during the move. If this partial action is an attack, the creature provokes no attacks of opportunity by moving through areas threatened by its target. The creature cannot take a second move action during a round when it makes a flyby attack.
 
Source: Savage Species