korien_may15“It’s about five miles as the crow flies.” 「まっすぐ行けば5マイルくらいだ。」


When traveling, we usually have to follow roads. If something is five miles away, we might have to cover more distance than five miles, because the roads don’t go straight there. The road might curve, or we have to go in one direction and then turn onto a different road going in another direction. A crow can fly in a straight line, so the distance “as the crow flies” is the actual distance in a straight line.