Tiny bird flies down the flue, out the fireplace, across the room. Before it can reach the first wall the cat has it, leaping from a couch arm all claws and ferocity, landing in a pile, cat and prey, behind a stereo speaker.
Nature, instinct, millenia of adaptation. An indoor domestic cat can bag a wild bird in flight in just two or three seconds.
Outside, the little bird's mate cries, calling out, mourning.