Animated Animals: It is the sound of the underground

You walk to a subway entrance and look around. People silently go in and out, some bumping into you silently or with little more than a grunt. You look around and suddenly see a bird hopping around. It hops to the elevator, seemingly waiting for someone to open it. As inconspicuous as possible you walk to the elevator and press the button. The bird and you enter. Once inside you cannot contain your curiosity. “Excuse me, where are you going?” The bird cocks its head at you. It spreads its wings, is that how they point at stuff? “Today is…