My answer is "all of the above"! At about 120 mph, if that was what you were going at, the aerodynamic drag caused by the vortices generated by the car roof on the antenna pushed it rearward but not enough drag to create a bending moment to snap it. At that speed on a country road, the poor animal by the road experienced a pressure difference between its stationary body and the moving car, a pressure difference so great that it sucked the poor animal into the turbulent flow and landed it on the already bended antenna making it to snap. Upon realization, the astonished driver stopped the car and went to the antenna to examine the damage. Little that she knew, she attempted to bend back the broken antenna in hope that it would stand upright, she added further stress onto the antenna making it permenantly deformed...ahem, snapped! Hence, the damage is created by "all of the above" conditions.:smoker2:
I am such a geek, ain't I?

That's my 4 years of undergrad aerospace engineering degree....
The truth is, this is my 100th post, thought I would make it silly