EP I guess I didn't explain well enough my gentle banks of 10 to 15 degrees didn't resemble F18 evasive tactics. I never had a passenger complain when I was maneuvering around turkey buzzards that if I hadn't used visual avoidance of their multiple flocks would have I am sure had multiple groundings of our 757. You just have to look far in front of you to make it gentle maneuvers. Your battering ram approach of your mass is bigger so why not fly through the flock is flawed. A simple maneuver of not over 15 degrees of bank will easily avoid the problem.