I looked at a stranger. Interestingly, it turns out: he puts eggs that sit and wait for the sacrifice. Waited, strained, grew up, killed the carrier. Then they killed everyone they found, and they didn’t even eat—just broke it in pieces—and all. And then what? Well, he will lay the eggs, then he will die of hunger or of old age. And how many eggs are there failing again? Will somebody fly again? So it can wait thousands of years - the eggs will fade by that time. How he survives with such behavior - it is unclear - must be extinct long ago.