The force of an impact depends greatly on the weight of the bird, the speed difference between it and the plane, and the direction of the impact.

很大程度上，撞击力取决于鸟儿重量、鸟与飞机间的速度差，以及撞击角度。

The energy of the impact increases with the square of the speed difference, which is why a low-speed impact of a small bird on a car windshield causes very little damage, while a high-speed impact with a jet can cause catastrophic damage.

撞击能量与速度差的平方呈正比，因此，一只低速飞行的小鸟，撞上汽车挡风玻璃时损失很小，而撞上高速飞行的喷气式飞机时，却会导致毁灭性的损失。