3
" The ravens play individually, in pairs, or in samll groups; they circle high, dive, fold their wings, and shoot up or down with one or several of their fellows. They chase and frolic, tarry, turn loops; they make croaks, high cries, and rattling sounds. They do anything but fly in formation. They remind you of a bunch of schoolboys wandering down a lonely road, kicking a ball along. The geese fly mechanically, calling unvaryingly and beating their wings at a steady disciplined rhythm like soldiers marching off. "
― Bernd Heinrich , A Year in the Maine Woods