eli5 why do birds not kill eachother more in flight

Question

howcome when you see a big flock of birds flying all will fly and not really hit eachother.
if you let a big group humans flock about we bump like crazy. so why not more head on collisions happen in flocks of birds

In: 0

Answer 1

For the same reason we don’t constantly kill eachother when driving on roads. You stay somewhat apart.

Sure accidents happen occasionally.