Question

Meaning for 'Outside the sky grew dark and the crows flew past'

Answer 1

It is phrase used to desceibe the surroundings in which it tells us the sun has set; it is night time,and as it dark there are birds like crowd flying past.

Answer 2

$\huge\mathfrak\orange{AnswEr}$

Most do this only outside of the breeding season. ... Migrating flocks were said to darken the sky for hours as they passed.