[dominic flandry]

Natural selection of course.

The birds were flying high up in the sky when the asteroid hit the ground. The ejecta did not reach the birds. When the ejecta settled to the ground, the birds landed on the ground.

Q.E.D.

[Soliton]

Natural selection of course. The birds were flying high up in the sky when the asteroid hit the ground. The ejecta did not reach the birds. When the ejecta settled to the ground, the birds landed on the ground. Q.E.D.

You apparently have an IQ greater then 100. Welcome to the club!