No crows are brought up.

Birds did. Crows.

Crows, I think.

Well, I think these were crows.

Problem is, the enemy isn't a bunch of sparrows and crows!

Crows or blackbirds, if the school was attacked, that's pretty serious.

The eye that mocks at his father, and scorns obedience to his mother the ravens of the valley shall pick it out, the young eagles shall eat it.

The eye that mocketh at his father, and despiseth to obey his mother, the ravens of the valley shall pick it out, and the young eagles shall eat it.

Even a peaceful landscape... even a meadow in harvest, with crows circling overhead and grass fires... even a road where cars and peasants and couples pass... even a resort village with a steeple and country fair can lead to a concentration camp.